Far from the front line of the war in Ukraine, battle lines of a different kind were drawn when residents of a Moscow district opposed a rumored proposal for a mosque for 60,000 worshippers by a lake cherished by Russian Orthodox believers. In February, people in Kosino-Ukhtomsky started to voice anger at the complex, which would include a Muslim center and educational facilities. President of the predominantly Muslim Russian republic of Chechnya, Ramzan Kadyrov, fiercely loyal to Russian President Vladimir Putin, called on anti-mosque demonstrators to "show your patriotism" by going to the trenches in Ukraine. Prominent MMA fighters also...