Russia may be in Ukraine to stay after 100 days of war

When Vladimir Putin sent troops into Ukraine in late February, the Russian president vowed his forces would not occupy the neighboring country. But as the invasion reached its 100th day Friday, Russia seemed increasingly unlikely to relinquish the territory it has taken in the war.

The ruble is now an official currency in the southern Kherson region, alongside the Ukrainian hryvnia. Residents there and in Russia-controlled parts of the Zaporizhzhia region are getting offered Russian passports. The Kremlin-installed administrations in both regions have talked about plans to become part of Russia.

The...