Ukraine

More than 5 million people have fled Ukraine since the start of the Russian invasion — the majority of which are women and children.

The Voloshky Ukrainian Dance Ensemble, which turns 50 this year, hopes to counter Russian aggression by teaching U.S. audiences about Ukrainian history and culture.

The U.N. is helping to evacuate the remaining civilians, officials said Sunday. House Speaker Nancy Pelosi is the most senior U.S. official to visit Kyiv since the war began in February.

A roundup of key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

Citing satellite imagery, a submarine analyst says Russia's navy is deploying dolphins to defend a crucial base off Crimea. Russia and the U.S. have run marine-mammal training programs for decades.

Russian criticism of Western military aid to Ukraine is not new. But recent rhetoric reflects efforts to build public consensus for the need of a protracted — if not existential — war with the West.

"It is a war zone, but it is shocking that it happened close to us," Saviano Abreu, a spokesman for the U.N.'s humanitarian office, was quoted as saying. The attack killed one person: a journalist.

A roundup of key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

"Unfortunately, the longer this conflict goes on, the more violations we're finding," says the head of a U.N. team documenting possible human rights abuses in Ukraine.

A roundup of key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

Chechen leader Ramzan Kadyrov has long been seen as a key ally to Russian President Vladimir Putin. That commitment has now extended to the war in Ukraine.

The U.S. now believes Ukraine can win, a significant change in thinking, and is rushing in weapons. This raises the risk of widening the conflict, analysts say, and may destabilize the global economy.