Russian President Vladimir Putin has called on Ukrainian troops in the Russian region of Kursk to surrender, as diplomatic back-and-forth continues over a potential US-brokered ceasefire with Ukraine.

President Trump appears to have been referencing the Ukrainian attack into Russia near Kursk when he said, Friday during a speech at the DOJ, that PRESIDENT DONALD TRUMP: We have had some very good calls today with Russia and Ukraine.

The last time Ukraine signed a peace accord with Russia, 10 years ago, it brought only sporadic violence, mounting distrust, and eventually full-scale war. Here’s what we can learn from that history.

The Trump administration is pushing Russia to agree to a Ukraine ceasefire and peace talks. Here is what Moscow has said it wants.

Russia has reportedly laid out its demands for ending the war in Ukraine and they mirror previous requests made to Kyiv, the U.S. and NATO.