What happened
Advancing Ukrainian forces clawed back more territory this week, as British intelligence reported that Russia had lost a full third of its invading troops. Ukrainian fighters retook Kharkiv, the second-biggest city, and pushed northward to the Russian border. Russia, meanwhile, focused its firepower on the south and east, but with mixed results. In eastern Luhansk, Ukrainian artillery obliterated an entire Russian battalion that was trying to cross a pontoon bridge, destroying more than 70 military vehicles and killing nearly 500 Russian soldiers.
In Mariupol, though, Russia claimed that 1,000 Ukrainians had surrendered, and Ukrainians reported that Russians hauled away more than 260 soldiers from the city’s last holdout, the Azovstal steelworks. The Kremlin insisted Russia would treat the soldiers—many of them badly wounded—in accordance with international law,…