(R-L, 1st row) Defence Minister Sergei Shoigu, head of the Russian presidential administration Sergei Ivanov, President Vladimir Putin and Prime Minister Dmitry Medvedev watch honor guards passing by as they attend a wreath-laying ceremony at the Tomb of the Unknown Soldier in central Moscow, Russia, June 22, 2015. Russia marks the 74th anniversary of the Nazi German invasion on June 22. [Photo/Agencies]