Ukraine pushes big counteroffensive as war marks 200 days

As the war in Ukraine marked 200 days on Sunday, the country has reclaimed broad swaths of the south and east in a long-anticipated counteroffensive that has dealt a heavy blow to Russia.

The counterattack began in the final days of August and at first focused on the southern region of Kherson, which was swept by Russian forces in the opening days of the invasion. But just as Moscow redirected attention and troops there, Ukraine launched another, highly effective offensive in the northeast, near Kharkiv.

Facing the prospect of a...