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4GW theory has always attracted overenthusiasts and  raging haters ever since the concept emerged way back in 1989, so debates about the merit of 4GW are nothing new; in fact, the arguments became so routine that they had largely gone sterile years ago.  After T.X. Hammes published his excellent  The Sling and the Stone and John Robb  went to the next level with Brave New War , it seemed that  little new was left to be said. In the late 2000’s, intellectual energies shifted to arguing the nuances and flaws of Pop-centric COIN, which proved in time to be even more bitter than those about 4GW.

Generations of War Theory Visualized by Chet Richards

What is different recently is that the person taking the affirmative on the question “Is 4GW dead?” was Dr. Chet Richards, who for years ran the premier but now defunct 4GW site, D-N-I.net, now archived here by the Project on Government Oversight.  Richards is no Clausewitzian true-believer or Big Army MBA with stars, but a former collaborator with John Boyd and a leading thinker of the 4GW school who had written several books with that strategic theme.

Therefore, not a critic to be dismissed lightly. Here’s Chet:

Is 4GW Dead? 

….The first thing to note is that 4GW is an evolution from 3GW, which they equate to maneuver warfare and the blitzkrieg as defined in MCDP 1 and Boyd’s Patterns of Conflict. These are styles of warfare conducted by state armies against other state armies, although the paper does invoke the notion of transnational terrorists near the end.

At some point in the late 1990s, the theory bifurcated. Bill Lind and Martin van Creveld began to emphasize the decline of the state and focus on transnational guerrilla organizations like al-Qa’ida. Tom Barnett called this the “road warrior” model. T. X. Hammes, on the other hand, characterized 4GW as “evolved insurgency” and envisioned the techniques described in the paragraphs above as also useful for state-vs-state conflicts.

….The 9/11 attacks, by a transnational guerrilla movement, seemed to confirm 4GW in both of its forms. In the last few years, however, everything has gone quiet. Transnational insurgencies, “global guerrillas” as John Robb terms them, have not become a significant factor in geopolitics. “Continuing irritation” might best describe them, whose primary function seems to be upholding national security budgets in frightened western democracies. The state system has not noticeably weakened. So it might be fair at this point to conclude that although 4GW was a legitimate theory, well supported by logic and data, the world simply didn’t develop along the lines it proposed.

A prominent critic of 4GW, Antulio J. Echevarria, may have been correct:

What we are really seeing in the war on terror, and the campaign in Iraq and elsewhere, is that the increased “dispersion and democratization of technology, information, and finance” brought about by globalization has given terrorist groups greater mobility and access worldwide. At this point, globalization seems to aid the nonstate actor more than the state, but states still play a central role in the support or defeat of terrorist groups or insurgencies.

Why? I’ll offer this hypothesis, that the primary reason warfare did not evolve a fourth generation is that it didn’t live long enough. The opening of Sir Rupert Smith’s 2005 treatise, The Utility of Force, states the case….

Chet’s post spurred a sharp rebuttal from William Lind, “the Father of Fourth Generation Warfare”:

4GW is Alive and Well 

So “the world simply didn’t develop along the lines it (4GW) proposed”? How do you say that in Syriac?

The basic error in Chet Richards’ piece of April 19, “Is 4GW dead?” is confusing the external and internal worlds. Internally, in the U.S. military and the larger defense and foreign policy establishment, 4GW is dead, as is maneuver warfare and increasingly any connection to the external world. The foreign policy types can only perceive a world of states, in which their job is to promote the Wilsonian nee Jacobin, follies of “democracy” and “universal human rights.” They are in fact, 4GW’s allies, in that their demand for “democracy” undermines states, opening the door for more 4GW.

In most of the world, democracy is not an option. The only real options are tyranny or anarchy, and when you work against tyranny, you are working for anarchy. The ghost of bin Laden sends his heartfelt thanks.

Third Generation doctrine has been abandoned, de facto, if not de jure, by the one service that embraced it, the U.S. Marine Corps. The others never gave it a glance. The U.S. military remains and will remain second generation until it disappears from sheer irrelevance coupled with high cost. That is coming much sooner than any of them think.

….In many of these cases, including Egypt and Pakistan, the only element strong enough to hold the state together is the army. But the “democracy” crowd in Washington immediately threatens aid cut-offs, sanctions, etc., if the army acts. Again, the children now running America’s foreign policy are 4GW’s best allies.

Fourth generation war includes far more than just Islamic “terrorism,” and we see it gaining strength in areas far from the Middle East. Gangs have grown so powerful in Mexico, right on our border, that I predict the state will soon have to make deals with them, as the PRI has done in the past. Invasion by immigrants who do not acculturate is a powerful form of 4GW, more powerful than any terrorism, and that is occurring on a north-south basis (except Australia) literally around the world. Remember, most of the barbarians did not invade the Roman Empire to destroy it. They just wanted to move in. In fact, most were invited in. Sound familiar?

What should concern us most is precisely the disconnect between the internal and external worlds. Externally, 4GW is flourishing, while internally, in the US government and military, it does not exist. This is the kind of chasm into which empires can disappear….

Fabius Maximus – who is a both a pseudonymous blogger and a group blog, also responded:

Update about one of the seldom-discussed trends shaping our world: 4GW 

One of the interesting aspects of recent history is the coincidence of

1. the collapse of discussion about 4GW in US military and geopolitical circles,
2. victories by insurgents using 4GW methods over foreign armies in Iraq and Afghanistan, &
3. most important, the perhaps history-making victory by Bin Laden’s al Qaeda.

The second point is important to us, but the usual outcome since WW2 (after which 4GW became the dominate form of military conflict; see section C below).  The third point is the big one. Based on the available information, one of Bin Laden’s goals was to destabilize the US political regime. Massive increase in military spending (using borrowed funds). The bill of rights being shredded (note yesterday’s House vote to tear another strip from the 4th amendment). Our Courts holding show trials of terrorists — recruited, financed, supported by our security services. Torture and concentration camps.

….We — the Second American Republic — have engaged in a war with nationalistic, Islamic forces using 4GW.  So far we are losing.  For various reasons we are unable to even perceive the nature of the threat. In DoD the hot dot is again procurement of high-tech weapons — new ships, the F-35, the hypersonic cruise missile, etc.  All useless in the wars we’ve fought for the past 50 years, and probably in those of the next 50 years….. 

A few comments.

4GW has been heavily criticized – and accurately so – for making selective use of history, for unsupported maximal claims, for an excessively and ahistorically linear argument and for shifting or vaguely defined terms. Presented rigidly, it is relatively easy for critics to poke holes in it simply by playing “gotcha” (some of the criticism of 4GW did not get beyond ad hominem level garbage, but more intellectually serious detractors made very effective critiques of 4GW’s flaws).

That said, there were a number of useful elements or insights in the body of 4GW writings that retain their utility and I think are worth recalling:

• Whatever one thinks of 4GW as a whole, the school drew attention to the threat of non-state irregular warfare, failed states and the decline of state vs. state warfare and did so long before it was Pentagon conventional wisdom or trendy Beltway talking head spiels on Sunday morning news programs.
• While the state is not in decline everywhere in an absolute sense, it sure is failing in some places and has utterly collapsed elsewhere. Failed, failing and hollowed out states are nexus points for geopolitical problems and feature corruption, black globalization, insurgency, tribalism, terrorism, transnational criminal organizations and zones of humanitarian crisis. Whether we call these situations “irregular”, “hybrid”, “decentralized and polycentric”, “LIC”, “4GW” or everyone’s favorite, “complex” matters less than using force to achieve political aims becomes increasingly difficult as the interested parties and observers multiply. Some of the advice offered by the 4GW school regarding “the moral level of war”, de-escalation and the perils of fighting the weak in such a conflict environment are all to the good for reducing friction.
• The emphasis of the 4GW school on the perspective of the irregular fighter and their motivations not always fitting neatly within state-centric realpolitik, Galula-ish “Maoist Model” insurgency, Clausewitzian best strategic practice or the Western intellectual tradition, were likewise ahead of their time and contrary to S.O.P. Even today, the effort to see the world through the eyes of our enemies is at best, anemic. Red teams are feared more than they are loved. Or utilized.
• The bitter criticism the 4GW school lodged of the American political elite being allergic to strategic thinking and ignorant of strategy in general was apt; that American strategy since the end of the Cold War has been exceedingly inept in thought and execution is one of the few points on which the most rabid 4GW advocate and diehard Clausewitzian can find themselves in full agreement.

The lessons of 4GW will still be relevant wherever men fight in the rubble of broken societies, atomized communities and failed states.

[ by Charles Cameron — achieving something like closure on a post I started for Adam Elkus here, with a side dish along the way here ]
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It’s astonishing to me how closely complexity science is related to Hermann Hesse‘s Glass Bead Game.

Adam Elkus recently pointed those who follow him to Cosma Rohilla Shalizi, Methods and Techniques of Complex Systems Science: an Overview, and just a quick dip there gave me the graphic I’ve put at the head of this post, together with this quote about “patterns” as Shalizi understands that term:

I mean more or less what people in software engineering do: a pattern is a recurring theme in the analysis of many different systems, a cross-systemic regularity. For instance: bacterial chemotaxis can be thought of as a way of resolving the tension between the exploitation of known resources, and costly exploration for new, potentially more valuable, resources (Figure 1.2). This same tension is present in a vast range of adaptive systems. Whether the exploration-exploitation trade-off arises among artifcial agents, human decision-makers or colonial organisms, many of the issues are the same as in chemotaxis, and solutions and methods of investigation that apply in one case can profitably be tried in another. The pattern “trade-off between exploitation and exploration” thus serves to orient us to broad features of novel situations. There are many other such patterns in complex systems science: “stability through hierarchically structured interactions”, “positive feedback leading to highly skewed outcomes”, “local inhibition and long-rate activation create spatial patterns”, and so forth.

**

Let’s start with patterns. The “people in software engineering” Shalizi mentions gleaned their use of the term “pattern” from the architect Christopher Alexander, author of the extraordinary, seminal book A Pattern Language, which in turn has hugely influenced computer science. Alexander distilled the essence of his thinking in his “Bead Game Conjecture”:

That it is possible to invent a unifying concept of structure within which all the various concepts of structure now current in different fields of art and science, can be seen from a single point of view. This conjecture is not new. In one form or another people have been wondering about it, as long as they have been wondering about structure itself; but in our world, confused and fragmented by specialisation, the conjecture takes on special significance. If our grasp of the world is to remain coherent, we need a bead game; and it is therefore vital for us to ask ourselves whether or not a bead game can be invented.

Manfred Eigen, Nobel laureate in Chemistry, called his book with Ruth Winkler-Oswatitsch Laws of the Game — and it deals with molecular biology, cellular automata, game theory, and games. But not just that — it is specifically written with Hesse’s concept in mind:

We hope to translate Hermann Hesse’s symbol of the glass bead game back into reality.

While we’re on about cellular automata, what about Stephen Wolfram? I don’t know that he talks about the Glass Bead Game himself, but at least three people talk about Wolfram’s book, A New Kind of Science, and/or his search engine, Wolfram Alpha as being strongly analogous to Hesse’s game — Jason Dyer, Graeme Philipson, and most recently, Mohammed AlQuraishi. Here’s a key para from Quraishi’s piece:

I think the Game is an intriguing concept, and I think it may one day be realized. In fact I think we are already on our way toward realizing it. In the simplest and most general sense, mathematics and programming languages allow us to formalize all knowledge. Contenders for the language of the Game already exist, at least in principle. But we are further along than that. Search engines like Wolfram Alpha have already begun the process of formalizing diverse pieces of knowledge, unifying them in a single medium, and providing the means to connect and reason about them. A repeated example in the book, the mapping of musical compositions to mathematical formulas or even historical events, is eminently doable within Wolfram Alpha. Much remains to be done of course, and there is no “game” yet that can be played across the vast sea of all human knowledge, but some enterprising individuals have already gotten started on creating it.

And then there’s John Holland, the “father of genetic algorithms”. Holland told an interviewer:

I’ve been working toward it all my life, this Das Glasperlenspiel. It was a very scholarly game, starting with an abacus, where people set up musical themes, then do variations on it, like a fugue. Then they’d expand it to where it could include other artistic forms, and eventually cultural symbols. It became a very sophisticated game for setting up themes, almost as a poet would, and building variations as a composer. It was a way of symbolizing music and of building broad insights into the world.

If I could get at all close to producing something like the glass bead game I can’t think of anything that would delight me more.

**

I’ve been working on a playable variant on the Glass Bead Game too, for twenty years quite consciously, and more if you count subterranean stirrings. And I don’t think glass beads, or stones, or chess or go pieces, or beads on an abacus, or strings of ones and zeros, or cells in an agent-based model for that matter, are the way to go. Which is not to say those approaches shouldn’t be tried, or don’t have remarkable things to teach us. I just don’t believe they give us quite what Hesse envisioned:

a direct route into the interior of the cosmic mystery, where in the alternation between inhaling and exhaling, between heaven and earth, between Yin and Yang, holiness is forever being created.

I think what’s important in Hesse’s game is that concepts that humans can grasp should reveal their stunning interrelations to heart and mind. And for that reason, the “moves” in my games [Hipbone, and more recently Sembl] consist of concepts — musical, verbal, visual, mathematical — and the links, the analogies, the “semblances” between them.

**

And thus the game is a search for analogies.

The human mind must inevitably perform what Shalizi calls the “trade-off between exploitation and exploration”. Some thoughts are proximate to others, they can be developed without any special insight by regular “linear” thinking. We do this every day, every minute — but it is not particularly revelatory. It doesn’t solve thorny problems, much less create beauty. There is another mode of thinking, however, that leaps between thoughts that are not so “close” but are nevertheless deeply related. To leap the apparent distance between such deeply related thoughts, we deploy analogy and creative thinking, and that is where the aha! of revelation occurs.

So I would suggest there is a close analogy here with the point Shalizi is making with the diagram atop this post. The human mind, to slightly paraphrase Shalizi’s caption, will “exploit the currently-available patch of food” for thought by linear, inside-the-patch thinking, but at full stretch it will also “explore, in hopes of ?nding richer patches elsewhere” — the “elsewhere” being attained precisely by “creative leaps” — by seeing semblances, patterns, analogies.

And to return to my earlier post, Thinking outside the cocoon, of which this post is a continuation, and perhaps the completion….

Shalizi’s “random walk” is thus also the archangel’s “zig-zag wantonness” in that great poem, Tom O’Roughley — when William Butler Yeats asks, “how but in zig-zag wantonness / could trumpeter Michael be so brave?” and writes, “wisdom is a butterfly / and not a gloomy bird of prey”…

America 3.0: Rebooting American Prosperity in the 21st Century – why America’s Best Days are Yet to Come by James C. Bennett and Michael Lotus

I am confident that this deeply researched and thoughtfully argued book  is going to make a big political splash, especially in conservative circles – and has already garnered a strong endorsement from Michael Barone, Jonah Goldberg, John O’Sullivan and this review from  Glenn Reynolds in USA Today :

Future’s so bright we have to wear shades: Column 

….But serious as these problems are, they’re all short-term things. So while at the moment a lot of our political leaders may be wearing sunglasses so as not to be recognized, there’s a pretty good argument that, over the longer time, our future’s so bright that we have to wear shades.

That’s the thesis of a new book, America 3.0: Rebooting American Prosperity In The 21st Century.The book’s authors, James Bennett and Michael Lotus, argue that things seem rough because we’re in a period of transition, like those after the Civil War and during the New Deal era. Such transitions are necessarily bumpy, but once they’re navigated the country comes back stronger than ever.

America 1.0, in their analysis, was the America of small farmers, Yankee ingenuity, and almost nonexistent national government that prevailed for the first hundred years or so of our nation’s existence. The hallmarks were self-reliance, localism, and free markets.

At the end of the 19th century and the beginning of the 20th, people were getting unhappy. The country was in its fastest-ever period of economic growth, but the wealth was unevenly distributed and the economy was volatile. This led to calls for what became America 2.0: an America based on centralization, technocratic/bureaucratic oversight, and economies of scale. This took off in the Depression and hit its peak in the 1950s and 1960s, when people saw Big Government and Big Corporations as promising safety and stability. You didn’t have to be afraid: There were Top Men on the job, and there were Big Institutions like the FHA, General Motors, and Social Security to serve as shock absorbers against the vicissitudes of fate.

It worked for a while. But in time, the Top Men looked more like those bureaucrats at the end of Raiders Of The Lost Ark, and the Big Institutions . . . well, they’re mostly bankrupt, or close to it. “Bigger is better” doesn’t seem so true anymore.

To me, the leitmotif for the current decade is supplied by Stein’s Law, coined by economist Herb Stein: “Something that can’t go on forever, won’t.” There are a lot of things that can’t go on forever, and, soon enough, they won’t. Chief among them are too-big-to-fail businesses and too-big-to-succeed government.

But as Bennett and Lotus note, the problems of America 2.0 are all soluble, and, in what they call America 3.0, they will be solved. The solutions will be as different from America 2.0 as America 2.0 was from America 1.0. We’ll see a focus on smaller government, nimbler organization, and living within our means — because, frankly, we’ll have no choice. Something that can’t go on forever, won’t. If America 2.0 was a fit for the world of giant steel mills and monolithic corporations, America 3.0 will be fit for the world of consumer choice and Internet speed.

Every so often, a “political” book comes around that has the potential to be a “game changer” in public debate. Bennett and Lotus have not limited themselves to describing or diagnosing America’s ills – instead, they present solutions in a historical framework that stresses the continuity and adaptive resilience of the American idea. If America”s “City on a Hill” today looks too much like post-industrial Detroit they point to the coming renewal; if the Hand of the State is heavy and it’s Eye lately is dangerously creepy, they point to a reinvigorated private sector and robust civil society; if the future for the young looks bleak,  Bennett and Lotus explain why this generation and the next will conquer the world.

Bennett and Lotus bring to the table something Americans have not heard nearly enough from the Right – a positive vision of an American future that works for everyone and a strategy to make it happen.

But don’t take my word for it.

The authors will be guests Tuesday evening on Lou Dobb’s Tonight and you can hear them firsthand and find out why they believe “America’s best days are yet to come“

I have been reading Nassim Nicholas Taleb’s latest book,  Antifragile . It’s a highly intriguing book and I will give it a full review soon, but Taleb’s core concept of antifragility is important  and lends itself to wide application. Here’s Taleb on what constitutes “antifragility” – things that gain or improve with disorder – which he was careful to distinguish not just from “fragility” but also from “robustness” and “resilience”:

Almost all people answer that the opposite of “fragile” is “robust”, “resilient” , “solid”, or something of the sort. But the resilient, robust (and company) are items that neither break nor
improve, so you would not need to write anything on them – have you ever seen a package with
“robust” stamped on it? Logically, the exact opposite of a “fragile” parcel would be a package on which one has written “please mishandle” or “please handle carelessly”. It’s contents would not just be unbreakable, but would benefit from shocks and a wide array of trauma. The fragile is the package that would be at best unharmed, the robust would at best and at worst unharmed. And the opposite of fragile is therefore what is at worst unharmed. [31]

Italics in original.

Taleb uses a number of metaphors – the Phoenix, the Hydra – as well as examples to get across the point that an antifragile entity overcompensates in reaction to stress/damage/disorder by becoming better, growing stronger, more powerful, adaptively improving itself. Think of the effects of weight training in building muscle or a wildfire spurring bountiful growth in an ecosystem. There’s more to Antifragile than this but the gist is sufficient for now.

Which brings me to the question, “Are insurgencies antifragile?”

The study of insurgency, terrorism and revolution, while important and useful tend to suffer from several drawbacks. One is compartmentalization and academic specialization. As Robert Bunker pointed out in Narcos Over the Border,  a problem like “criminal-insurgency” attracts very different reactions from Law enforcement, intelligence analysts, the military, counter-terrorism officials and other experts (to say nothing of politicians) which makes consensus over a common analytic framework very difficult. Sometimes even defining the problem across domains is frustrating. As a result, many studies are too narrow and the few admirably ambitiously broad ones are deeply stamped in the political lens of the era in which they were researched and written – i.e. imperialist Small Wars, the Cold War, the War on Terror, Pop-centric COIN of Iraq and Afghanistan wars etc.  It is a subject that requires both more (and more intellectually creative) scholarship and a greater degree of synthesis.

In the meantime, I’d like to offer some speculation in an effort to answer the question:

• The characteristics of “antifragility” in terms of at least some kinds of insurgency bears a striking resemblance to that of “wicked problems“, which has also been used to categorize some enduring irregular conflicts. Particularly in the sense of not having natural stopping points , manifesting complex interdependencies and resistance to simple, silver bullet solutions that could destroy it.
• Moreover, most successful insurgencies are not, contrary to Maoist theory, autochthonous  – they draw many resources from external sources – black globalization, foreign patrons, legitimate trade, fundraising – and from the very state waging counterinsurgency warfare against them. The Afghan Taliban would be a much poorer military force without the vast amount of American aid passing through the hands of Pakistan and the Karzai regime
• An insurgency’s claim to being “antifragile” may rest as much or more upon the general political and socioeconomic environment being relatively chaotic than on the nature of the insurgent organization itself.  The Chinese, Russian and Lebanese civil wars, Mexico’s narco-insurgency, West Africa and Afghanistan in the 1990’s, the Congo basinand Iraq in the 2000’s all had polycentric and disorderly environments that allowed  irregular groups to rapidly rise and fall on a local and regional basis. By contrast, “bilateral” insurgency vs. state dynamics can stabilize conflict for decades
• An insurgent organization may lose antifragility as it restructures itself over time to become either more robust (ex. –Hezbollah) subnational entity or to accept greater fragility in order to acquire state-like hierarchical advantages ( political discipline and specialization). Note that “fragile” does not mean “weak”, it means “vulnerable”. States can be very strong and concentrating massive amounts of resources and coercive force, yet be strangely vulnerable to internal coups, popular uprisings, economic collapse, strategic myopia or even natural disasters. One of the great dangers today are complex systems that combine epic power with extreme fragility – small disruptions by irregulars yield huge ROIs.
• States might be able to seek a strategic advantage over insurgencies by improving their robustness and smother the relatively ineffectual kinetic attacks of guerrillas or terrorists with inertia, refusing to “feed” the growth of an antifragile insurgent opponent, starving them of material resources and political oxygen. India has trucked along with something like seventeen ongoing insurgencies and episodic acts of major terrorism for decades without the Indian state remotely being in jeopardy of being overthrown by, say, the Naxalites, Sikh extremists or Kashmiri Islamists. Compare that with the rapid collapse or retreat of the state in places like Somalia, Yemen, Libya, Mali, Syria and so on.
• The effects of globalization and information technology, the ability to have  John Robb’s “open source” decentralized, fast-evolving, insurgencies, give an an impetus to insurgencies becoming antifragile. At a minimum, it improves the odds.

Adam Elkus has a lengthy and meaty post at Abu Muqawama, inspired by General Mattis, one that you should really read in full:

The Mattis Book Club

….But while gaining an understanding of the nature of war is useful, there are a lot of things it won’t do. This becomes most apparent in the section of the email where Mattis makes specific claims. Mattis repeatedly states that nothing is new under the sun, makes comparisons across big temporal zones (Alexander the Great in Persian Iraq vs. 2004 iraq), and advances specific analytical arguments about military theories. He does so on the basis of a sweeping generalization that 5,000 years of warfare tells us in aggregate that war has not changed. While this makes for a rousing line, it is also a fairly problematic statement. How do we really know that the nature of war has not changed in 5,000 years?

We should recognize that this is an isolated quote, and strive to not take out of context what was a heartfelt letter to a colleague in need of guidance. But the argument itself—as the cumulative product of a process of self-education in the nature of warfare, does merit some critical analysis. It is part of a humanistic conception of war that stresses the unity of military experience across the ages, and puts the fighting man’s will first. What Mattis dashed off in an email has been repeated by others in journal articles, blog posts, essays, and books. The military historian Brian McAllister Linn, in his seminal study of the Army’s cultures, dubbed it the “heroic” style of war. Linn constrasts this humanistic style this with technocratic Managers, defensive Guardians, and other military tribes with differing values and approaches.

So what do we know about 5,000 years of constant violence?

Often times the answer is that it depends. As my Fuller and Liddell-Hart examples illustrate, the quality of historical accounts is extremely uneven. Military history as a modern discipline only started with Hans Delbruck, a civilian who did some basic math and discovered that many of the most prominent chroniclers of pre-modern warfare were flat-out wrong about ancient history’s greatest battles and campaigns. Anthropologists still argue today about the nature of violence in the evolutionary state of nature and whether it can be mapped to violence in settled states. Second, it may be true that war is war in the Clausewitzian sense. But while it is technically true that Alexander’s Iraqi opponents and Sadrist mobs are both humans seeking to use force to impose their will, this in and of itself is not very useful. There are fairly prominent shifts in the character of politics, the international system, techology, wealth, and society that matter too.  

What constitutes politics is a very important point.

Take for example, the Romans. There was a definite shift between the Early-Middle Republican eras and the Late Republic in elite politics and the socioeconomic conditions upon which Roman assumptions about war and the organization and supply of Legions rested.  Growing inequality of wealth was making it harder for Plebian citizens to afford to muster for a campaign, the need for longserving “professional” Legates to maintain “institutional memory” of the “arts of war” of the Legions expanded even as the highly coveted opportunities for Patricians to command decreased. These trends clashed with what the Romans liked to  believe about themselves and the friction between advocates of reforms (often necessary and practical) and the upholders of  centuries of honored tradition made Roman politics increasingly bitter, dysfunctional and subsequently lethal. The early Romans would have been horrified by Marius and Sulla, to say nothing of Antony and Octavian.

In the end, the politics of the Romans, along with their battlefield experiences, changed how they organized and manned their Legions, why and how they fought the wars as they did and continued to shape Roman warfare as long as the empire lasted. Julius Caesar would have been as startled by Late Antiquity’s semi-barbarian “Roman” Magister Militiums as his own career would have dismayed Decius Mus.

Adam goes on to have some useful things to say about the need for combining historical and quantitative  social science  methodologies and the limitations of each. Delbruck’s overstated skepticism of the ancients aside, sometimes we moderns do not count any better in war or politics – or at times,  even worse