A notable outcome of Ukraine’s surprise invasion of the Russian province of Kursk — now stretching into its third week — is the Russian army’s reliance on thousands of unprepared, under-equipped, and poorly led conscripts in its attempt to repel the invasion. It’s often under-appreciated in the West just how unpopular and politically sensitive the draft is in Vladimir Putin’s Russia. The use of conscripts in Afghanistan and Chechnya (and their deaths in their thousands) was a huge part of the unpopularity of those wars inside Russia. In those years, the draft set off protests and a Russian “mothers’ movement”...