Boris B. Nadezhdin, an outspoken opponent of the war in Ukraine, says he knows why he was detained: “Among our leadership, there is panic and chaos.”

© Nanna Heitmann for The New York Times

As Ukraine brings the war home to Russia, officials hesitate to designate shelters and blast sirens, downplaying the conflict’s consequences with euphemisms.

© Igor Ivanko/Agence France-Presse — Getty Images