Complicating the West's efforts to isolate Russia, the Kremlin announced Thursday that Vladimir Putin will join President Barack Obama and European leaders in France next month for a ceremony marking the 70th anniversary of the D-Day invasion that hastened the end of World War II. The June 6 commemoration would mark the first time Putin and Western leaders have come face-to-face since the outbreak of the crisis in Ukraine. The U.S. and Europe have condemned Russia's provocations, ordering sanctions on Putin's inner circle and cutting Russia's ties to some international organizations.