Ukraine war is depleting America’s arsenal of democracy

America is following an “arsenal of democracy” strategy in Ukraine: It has avoided direct intervention against the Russian invaders, while working with allies and partners to provide the Kyiv government with money and guns. That strategy, reminiscent of U.S. support for Britain in 1940-41, has worked wonders. Yet as the war reaches a critical stage, with the Russians preparing to consolidate their grip on eastern Ukraine, the arsenal of democracy is being depleted.

That could cause a fatal shortfall for Ukrainian forces in this conflict, and it is revealing American weaknesses that could be laid bare in the next great-power fight.

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Pentagon officials say that Kyiv is blowing through a week’s worth of deliveries of antitank munitions every day. It is also running short of usable aircraft as Russian airstrikes and combat losses take their toll. Ammunition has become scarce in Mariupol and other areas.

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Germany has declined to transfer tanks to Ukraine on grounds that it simply cannot spare them. Canada quickly ran short on rocket launchers and other equipment that the Ukrainians desperately need. The U.S. has provided one-third of its overall stockpile of Javelin anti-tank missiles. It cannot easily deliver more without leaving its own armories badly depleted — and it may take months or years to significantly ramp up production.

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For the same reason, the war in Ukraine is a sobering preview of the problems the U.S. itself would face in a conflict against Russia or China. If forced to go to war in Eastern Europe or the Western Pacific, Washington would spend down its stockpiles of missiles, precision-guided munitions and other critical capabilities in days or weeks. It would probably suffer severe losses of tanks, planes, ships and other assets that are sophisticated, costly and hard to replace.

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American economic leadership is no longer based primarily on manufacturing. Shortages of machine tools, skilled labor and spare production capacity could slow a wartime rearmament effort. The U.S. can’t quickly scale up production of Stinger missiles for Ukraine, for example, because the workforce needed to do so no longer exists.