SEVASTOPOL, CRIMEA - MARCH 18:  Soldiers sing a song while marching on the streets as people celebrate the first anniversary of the signing of the decree on the annexation of the Crimea by the Russian Federation, on March 18, 2015 in Sevastopol, Crimea. Crimea, an internationally recognised Ukrainian territory with special status, was annexed by the Russian Federation on March 18, 2014. The annexation, which has been widely condemned, took place in the aftermath of the Ukranian revolution. (Photo by Alexander Aksakov/Getty Images)