Russia-Ukraine war

A Ukrainian official said the released POWs included troops who held out in Mariupol during Moscow's monthslong siege that reduced the southern port city to ruins.

This is the first summit to take place with Ukraine as an official candidate to join the European Union.

Human Rights Watch suggests that Ukraine scattered so-called petal mines in and around the city of Izium. Petal mines are prohibited under the 1997 Mine Ban Treaty, of which Ukraine is a signatory.

Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

The U.S. and Germany had resisted sending tanks for months. This marks the latest upgrade in heavy weapons for Ukraine and comes amid growing expectations the fighting will soon escalte.

German Chancellor Olaf Scholz announced Wednesday his country will export more than a dozen of its Leopard 2 battle tanks to Ukraine. The move follows weeks of pressure from western allies.

A string of resignations, dismissals and reassignments shook Ukraine's government, as Ukrainian President Volodymyr Zelenskyy and other leaders of the government confirmed the shake-up.

Catch up on key developments and the latest in-depth coverage of Russia's invasion of Ukraine.

Western countries will send what looks to be the largest tranche of military hardware so far to help Ukraine prepare for an expected offensive against Russian forces in the near future.

Western defense officials are meeting to coordinate military assistance to Ukraine. Germany has resisted their efforts to persuade the country to export its Leopard 2 tanks, or allow others to do so.