Gates hopes to expand US-Russian cooperation

Robert Gates has arrived in Russia for what's expected to be his final visit as U.S. Defense Secretary, and he's hoping to ease Moscow's worries over a missile defense shield in Europe and expand a military relationship that has grown dramatically since his Cold War days at the helm of the CIA.

Gates, who is expected to retire this summer, says Russian cooperation in the Afghanistan war and its support of U.N. Security Council resolutions against North Korea and Iran underscore cooperation that has dramatically evolved in recent years. Russia also abstained in the recent United Nations vote for military intervention in Libya, effectively allowing the allied assault to go forward.

The Pentagon chief will meet with Russian leaders and speak to a class of Naval Academy junior officers.