Russian President Vladimir Putin is inflicting unspeakable suffering on Ukrainians and demanding horrible sacrifices of his own people in an effort to seize a city that does not merit the cost, even for him. The Russian invasion of Ukraine that aimed to seize and occupy the entire country has become a desperate and bloody offensive to capture a single city in the east while defending important but limited gains in the south and east. Ukraine has twice forced Putin to define down his military objectives. Ukraine defeated Russia in the Battle of Kyiv, forcing Putin to reduce his subsequent military...