Russian soldiers dressed in Red Army World War II uniforms attend a rehearsal for the Nov. 7 parade in the Red Square with Spassky Tower in the background, in Moscow, Russia, Friday, November 6, 2015. The parade marks the 74th anniversary of a November 7 parade on Red Square when soldiers went directly to the front during World War II. For decades Nov. 7 was a holiday celebrating the 1917 Bolshevik Revolution. (Photo by Ivan Sekretarev/AP Photo)






Russian servicemen, dressed in historical uniforms, line up as they take part in a military parade rehearsal in Red Square near the Kremlin in central Moscow, Russia, November 6, 2015. The parade will be held on November 7 to mark the anniversary of a historical parade in 1941 when Soviet soldiers marched through Red Square towards the front lines during World War Two. (Photo by Maxim Shemetov/Reuters)





Russian servicemen, dressed in historical uniforms, line up as they take part in a military parade rehearsal in front of St. Basil's Cathedral in Red Square in central Moscow, Russia, November 6, 2015. (Photo by Maxim Shemetov/Reuters)





A Russian serviceman, dressed in historical uniform, takes part in a military parade rehearsal in front of St. Basil's Cathedral in Red Square in central Moscow, Russia, November 6, 2015. (Photo by Maxim Shemetov/Reuters)





Russian servicemen, dressed in historical uniforms, hold a barrage balloon as they take part in a military parade rehearsal in Red Square near the Kremlin in central Moscow, Russia, November 6, 2015. (Photo by Maxim Shemetov/Reuters)





People, dressed in historical uniforms, sing a song as they take part in a military parade rehearsal in Red Square near the Kremlin in central Moscow, Russia, November 6, 2015. (Photo by Maxim Shemetov/Reuters)





Russian servicemen, dressed in historical uniforms, take part in a military parade rehearsal in Red Square in central Moscow, Russia, November 6, 2015. (Photo by Maxim Shemetov/Reuters)





Russian servicemen, dressed in historical uniforms, get prepared as they take part in a military parade rehearsal in Red Square near the Kremlin in central Moscow, Russia, November 6, 2015. (Photo by Maxim Shemetov/Reuters)





Russian servicemen, dressed in historical uniforms, take part in a military parade rehearsal in front of St. Basil's Cathedral in Red Square in central Moscow, Russia, November 6, 2015. (Photo by Maxim Shemetov/Reuters)





Russian honor guards line up as they take part in a military parade rehearsal in Red Square in central Moscow, Russia, November 6, 2015. (Photo by Maxim Shemetov/Reuters)





Participants run during a military parade rehearsal in Red Square in central Moscow, Russia, November 6, 2015. (Photo by Maxim Shemetov/Reuters)





Russian servicemen dressed in historical uniforms take part in a military parade on the Red Square with St. Basil's Cathedral seen in the background in central Moscow, Russia, November 7, 2015. The parade marks the anniversary of a historical parade in 1941 when Soviet soldiers marched through Red Square towards the front lines during World War Two. (Photo by Maxim Shemetov/Reuters)





Russian servicemen dressed in historical uniforms and other participants perform during a military parade on the Red Square in central Moscow, Russia, November 7, 2015. (Photo by Maxim Shemetov/Reuters)





Russian servicemen dressed in historical uniforms take part in a military parade on the Red Square in central Moscow, Russia, November 7, 2015. (Photo by Maxim Shemetov/Reuters)





Children and a woman run while taking part in a performance part of a military parade on the Red Square in central Moscow, Russia, November 7, 2015. (Photo by Maxim Shemetov/Reuters)





Russian servicemen dressed in historical uniforms take part in a military parade on the Red Square with St. Basil's Cathedral seen in the background in central Moscow, Russia, November 7, 2015. (Photo by Maxim Shemetov/Reuters)





Russian servicemen dressed in historical uniforms take part in a military parade on the Red Square with St. Basil's Cathedral seen in the background in central Moscow, Russia, November 7, 2015. (Photo by Maxim Shemetov/Reuters)





Activists and supporters of the Communist Party take part in a demonstration marking the anniversary of the 1917 Bolshevik revolution, also known as known as the Great October Socialist Revolution in Moscow, Russia, November 7, 2015. (Photo by Maxim Shemetov/Reuters)





Activists and supporters of the Communist Party take part in a demonstration marking the anniversary of the 1917 Bolshevik revolution also known as known as the Great October Socialist Revolution in the Siberian city of Krasnoyarsk, Russia, November 7, 2015. The banner reads, "People!". (Photo by Ilya Naymushin/Reuters)





A man holds a board with an image of Soviet leader Joseph Stalin as activists and supporters of the Communist Party take part in a demonstration marking the anniversary of the 1917 Bolshevik revolution also known as known as the Great October Socialist Revolution in the Siberian city of Krasnoyarsk, Russia, November 7, 2015. (Photo by Ilya Naymushin/Reuters)





A supporter of the Communist Party takes part in a demonstration marking the anniversary of the 1917 Bolshevik revolution, also known as known as the Great October Socialist Revolution, in central Moscow, Russia, November 7, 2015. (Photo by Maxim Shemetov/Reuters)





Activists and supporters of the Communist Party take part in a demonstration marking the anniversary of the 1917 Bolshevik revolution, also known as known as the Great October Socialist Revolution, in central Moscow, Russia, November 7, 2015. (Photo by Maxim Shemetov/Reuters)