In the weeks leading up to the Russian invasion of Ukraine, those warning of the possible dangers of U.S. involvement were assured that such concerns were baseless. The prevailing line insisted that nobody in Washington is even considering let alone advocating that the U.S. become militarily involved in a conflict with Russia. That the concern was based not on the belief that the U.S. would actively seek such a war, but rather on the oft-unintended consequences of being swamped with war propaganda and the high levels of tribalism, jingoism and emotionalism that accompany it, was ignored. It did not matter...