U.S. envoy Steve Witkoff calls Ukraine and Russia's exchange of 314 prisoners "tangible progress," but acknowledges a lot of work left to end the war.

As climate impacts deepen and the number of conflicts globally reach their highest levels since the Second World War, the links between climate change, peace and security have never been more urgent, ...

WASHINGTON — Russia and Ukraine agreed to release 157 of each others’ prisoners of war on Thursday after another round of talks with the US, a move that some analysts say was a largely symbolic show ...