More evidence is piling up that Russia's military-industrial complex is nearing the brink after nearly three years of fighting in Ukraine. President Vladimir Putin mobilized the economy for Russia's invasion, resulting in massive amounts of state funds for defense contractors along with low unemployment as working-age people build weapons in factories or serve on the front lines. But that also stoked inflation, which has hit 9% and even forced Putin to acknowledge that it's "alarming." Russia's central has hiked its benchmark rate to 21% to rein in prices, but businesses are feeling the strain of all that monetary tightening. In...