First came a ballistic missile strike on Kyiv early this month that killed 24 people, including three children. Then, on Sunday, Russia launched one of the heaviest missile and drone attacks of the war against the city, Ukraine’s capital. Moscow followed that with threats of further “sustained strikes” on Kyiv, including at “decision-making centers,” and urged diplomats and other foreigners to leave. Russia has ample reasons to be in a belligerent mood. The Kremlin, analysts said, is seeking to