What, precisely, is the US military for, and what, precisely, can it do? In practical terms, how powerful is it? On paper, it is formidable, huge, with carrier battle groups, advanced technology, remarkable submarines, satellites, and so on. What does this translate to?

Military power does not exist independently, but only in relation to specific circumstances. Comparing technical specifications of the T-14 to those of the M1A2, or Su-34 to F-15, or numbers of this to numbers of that, is an interesting intellectual exercise. It means little without reference to specific circumstances.

For example, America is vastly superior militarily to North Korea in every category of arms – but the North has nuclear bombs. It can’t deliver them to the US, but probably can to Seoul. Even without nuclear weapons, it has a large army and large numbers of artillery tubes within range of Seoul. It has an unpredictable government. As Gordon Liddy said, if your responses to provocation are wildly out of proportion to those provocations, and unpredictable, nobody will provoke you.

An American attack by air on the North, the only attack possible short of a preemptive nuclear strike, would offer a high probability of a peninsular war, devastation of Seoul, paralysis of an important trading partner – think Samsung – and an uncertain final outcome. The United States hasn’t the means of getting troops to Korea rapidly in any numbers, and the domestic political results of lots of GIs killed by a serious enemy would be politically grave. The probable cost far exceeds any possible benefit. In practical terms, Washington’s military superiority means nothing with regard to North Korea. Pyongyang knows it.

Or consider the Ukraine. On paper, US forces overall are superior to Russian. Locally, they are not. Russia borders on the Ukraine and could overrun it quickly. The US cannot rapidly bring force to bear except a degree of air power. Air power hasn’t worked against defenseless peasants in many countries. Russia is not a defenseless peasant. Europe, usually docile and obedient to America, is unlikely to engage in a shooting war with Moscow for the benefit of Washington. Europeans are aware that Russia borders on Eastern Europe, which borders on Western Europe. For Washington, fighting Russia in the Ukraine would require a huge effort with seaborne logistics and a national mobilization. Serious wars with nuclear powers do not represent the height of judgment.

Again, Washington’s military superiority means nothing.

Or consider Washington’s dispute with China in the Pacific. China cannot begin to match American naval power. It doesn’t have to. Beijing has focused on anti-ship missiles – read “carrier-killer” – such as the JD21 ballistic missile. How well it works I do not know, but the Chinese are not stupid. Is the risk of finding out worth it? Fast, stealthed, sea-skimming cruise missiles are very cheap compared to carriers, and America’s admirals know that lots of them arriving simultaneously would not have a happy ending.

Having a fleet disabled by China would be intolerable to Washington, but its possible responses would be unappealing. Would it start a conventional war with China with the ghastly global economic consequences? This would not generate allies. Cut China’s oil lanes to the Mideast and push Beijing toward nuclear war? Destroy the Three Gorges Dam and drown god knows how many people? If China used the war as a pretext for annexing bordering counties? What would Russia do?

The consequences both probable and assured make the adventure unattractive, especially since likely pretexts for a war with China – a few rocks in the Pacific, for example – are too trivial to be worth the certain costs and uncertain outcome. Again, military superiority doesn’t mean much.

We live in a military world fundamentally different from that of the last century. All-out wars between major powers, which is to say nuclear powers, are unlikely since they would last about an hour after they became all-out, and everyone knows it. In WWII Germany could convince itself, reasonably and almost correctly, that Russia would fall in a summer, or the Japanese that a Depression-ridden, unarmed America might decide not to fight. Now, no. Threaten something that a nuclear power regards as vital and you risk frying. So nobody does.

At any rate, nobody has. Fools abound in DC and New York.

What then, in today’s world, is the point of huge conventional forces?

The American military is an upgraded World War II military, designed to fight other militarizes like itself in a world like that which existed during World War II. The Soviet Union was that kind of military. Today there are no such militaries for America to fight. We are not in the same world. Washington seems not to have noticed.

A World War II military is intended to destroy point targets of high value – aircraft, ships, factories, tanks – and to capture crucial territory, such as the enemy’s country. When you have destroyed the Wehrmacht’s heavy weaponry and occupied Germany, you have won. This is the sort of war that militaries have always relished, having much sound and fury and clear goals.

It doesn’t work that way today. Since Korea, half-organized peasant militias have baffled the Pentagon by not having targets of high value or crucial territory. In Afghanistan for example goatherds with rifles could simply disperse, providing no point targets at all, and certainly not of high value. No territory was crucial to them. If the US mounted a huge operation to take Province A, the resistance could just fade into the population or move to Province B. The US would always be victorious but never win anything. Sooner or later America would go away. The world understands this.

Further, the underlying nature of conflict has changed. For most of history until the Soviet Union evaporated, empires expanded by military conquest. In today’s world, countries have not lost their imperial ambitions, but the approach is no longer military. China seems intent on bringing Eurasia under its hegemony, and advances toward doing it, but its approach is economic, not martial. The Chinese are not warm and fuzzy. They are, however, smart. It is much cheaper and safer to expand commercially than militarily, and wiser to sidestep martial confrontation – in a word, to ignore America. More correctly it is sidestepping the Pentagon.

Military and diplomatic power spring from economic power, and China is proving successful economically. Using commercial clout, she is expanding her influence, but in ways not easily bombed. She is pushing the BRICS alliance, from which the US is excluded. She is enlarging the SCO, from which America is excluded. Perhaps most importantly, she has set up the AIIB, the Asia Infrastructure Investment Bank, which does not include the US but includes Washington’s European allies. These organizations will probably trade mostly not in dollars, a serious threat to Washington’s economic hegemony.

What is the relevance of the Pentagon? How do you bomb a trade agreement?

China enjoys solvency, and hegemonizes enthusiastically with it. Thus in Pakistan it has built the Karakoram Highway from Xian Jiang to Karachi, which will increase trade between the two. It is putting in the two power reactors near Karachi. It is investing in Afghan resources, increasing trade with Iran. . When the US finally leaves, China, without firing a shot, will be predominant in the region.

What is the relevance of aircraft carriers?

Beijing is talking seriously about building more rail lines, including high-speed rail, from itself to Europe, accompanied by fiber-optic lines and so on. This is not just talk. China has the money and a very large network of high-speed rail domestically. (The US has not a single mile.) Google “China-Europe Rail lines.”

What is the Pentagon going to do? Bomb the tracks?

As trade and ease of travel from Berlin to Beijing increase, and as China prospers and wants more European goods, European businessmen will want to cuddle up to that fabulously large market – which will loosen Washington’s grip on the throat of Europe. Say it three times slowly: Eur-asia. EurasiaEurasia I promise it is what the Chinese are saying.

What is the Pentagon’s trillion-dollar military going to bomb? Europe? Railways across Kazakhstan? BMW plants?

All of which is to say that while the US military looks formidable, it isn’t particularly useful, and aids China by bankrupting the US. Repeatedly it has demonstrated that it cannot defeat campesinos armed with those most formidable weapons, the AK, the RPG, and the IED. The US does not have the land forces to fight a major or semi-major enemy. It could bomb Iran, with unpredictable consequences, but couldn’t possibly conquer it.

The wars in the Mideast illustrate the principle nicely. Iraq didn’t work. Libya didn’t work. Iran didn’t back down. ISIS and related curiosities? The Pentagon is again bombing an enemy that can’t fight back – its specialty – but that it seems unable defeat.

Wrong military, wrong enemy, wrong war, wrong world.

Fred Reed is author of Nekkid in Austin: Drop Your Inner Child Down a Well, A Brass Pole in Bangkok: A Thing I Aspire to Be, Curmudgeing Through Paradise: Reports from a Fractal Dung Beetle, Au Phuc Dup and Nowhere to Go: The Only Really True Book About VietNam, and A Grand Adventure: Wisdom’s Price-Along with Bits and Pieces about Mexico. Visit his blog.