Russian President Vladimir Putin oversaw a military exercise involving $4.
Putin said the exercises were planned in November, but they $4 over the Ukrainian crisis. Putin oversaw the test exercises at the Russian Defense Ministry's headquarters, along with leaders from other ex-Soviet countries - Belarus, Armenia, Tajikstan, and Kyrgyzstan - who are now part of the Collective Security Treaty Organization.
The Kremlin provided a look inside the Russian Defense Ministry's headquarters, one of the first such looks into Putin's massive command center:
Russian Presidential Information Office