In 1914, Europe stumbled into a war no one wanted and few understood;a war that destroyed empires and redefined civilization.Today, Washington risks repeating that mistake, this time with nuclear weapons on the table. Through arrogance, ignorance, or incompetence, the United States is drifting toward direct confrontation with Russia, the world’s largest nuclear arsenal, with consequences that could be apocalyptic.President Trump last week said he has “sort of” made a decision about supplying Tomahawk cruise missiles to Ukraine or NATO allies.He wants to learn more about “what they are doing with them” before making a final decision. His goal is to...