![](http://www.alamy.com/thumbs/6/D6967139-BD4E-498C-B9EE-5D17DB382FBB/PCRT1M.jpg)
Gen. John R. Allen, right, stands in front of Gen. Martin E. Dempsey, chairman of the Joint Chiefs of Staff, left, and Gen. James F. Amos, commandant of the Marine Corps, prior to receiving a Defense Distinguished Service Medal during a retirement ceremony at the Naval Academy, Annapolis, Md., April 29. Allen retires after more than 30 years of faithful service to the Corps.
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