Russia is mobilizing for a long war in Ukraine. The West … isn’t. To preserve Ukraine’s independence and deter further Russian aggression, that must change. Ukraine’s allies must do more, faster – and brace for a conflict that could grind on for years.But they might already be losing their nerve.The authoritarian regime of Russian president Vladimir Putin was overconfident in the months leading up to its February 2022 wider invasion of Ukraine. The Kremlin talked about a two-week “special military operation” that would “demilitarize” Ukraine by destroying its armed forces and toppling its elected government.The two-week war became a two-year...