(VOVworld)-US President Barack Obama and Russian President Vladimir Putin held brief talks on the sidelines of D-Day anniversary celebrations in Normandy, France, on Friday.

Putin Meets Obama, Poroshenko on D-Day Event Sidelines

A White House official confirmed the two met for about 15 minutes after a luncheon for world leaders at the Chateau de Benouville. Obama made clear that to Putin that de-escalating the crisis in Ukraine depends upon Moscow recognizing President-elect Petro Poroshenko - scheduled to take office Saturday - as the country's legitimate leader, ceasing support for pro-Russia separatists in eastern Ukraine, and stopping the provision of arms and materiel across the border. Obama urged Putin to immediately collaborate with the Kyiv government to reduce tensions, warning that failure to do so would deepen Russia's isolation.