Russia’s foundering invasion of Ukraine has produced an extraordinary barrage of criticism from supporters of the war in recent days, directed primarily at the leadership of the Russian military. The outpouring of discontent is creating a new challenge to Russian President Vladimir Putin, who, after cracking down on Russia’s liberal opposition, now faces growing dissent in his own camp.

The latest salvo came Thursday when a Russian-installed official in an occupied region of Ukraine belittled the Kremlin’s defense minister, Sergei Shoigu, a close associate of Putin. The official, Kirill Stremousov, said Shoigu should consider killing himself because of his army’s failures in Ukraine.

"Many people are saying that as an officer, the defense minister could simply shoot himself for being the one who let things get to this state,” said Stremousov, Russia’s "deputy governor” of the Kherson region of southern Ukraine.