Russian President Vladimir Putin, center, sings the national anthem at a rally marking the one year anniversary of the annexation of Ukraine's Crimea peninsula, in downtown Moscow, Russia, Wednesday, March 18, 2015. Speaking to tens of thousands of supporters just outside the Kremlin walls, Putin has described Russia's annexation of Ukraine's Crimean Peninsula as a move to protect ethnic Russians and regain the nation's "historic roots." At left is Russian singer Larisa Dolina. (AP Photo/Pavel Golovkin), APTOPIX