Frank Buckles during a 2008 ceremony honoring him on Capitol Hill in Washington, D.C. Karen Bleier/AFP/Getty Images hide caption

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A cargo ship transits the Suez Canal en route from the Mediterranean Sea to the Gulf of Suez at the city of Suez, Egypt, on Feb. 2. Egypt controls the canal, which is vital to U.S. interests. Emilio Morenatti/AP hide caption

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The USS Enterprise passes behind a mosque as it makes its way through the Suez Canal in the city of Suez, Egypt, on Aug. 1, 2007. Ben Curtis/AP hide caption

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Anti-government protesters offer their evening prayers in front of an Egyptian army tank securing the area during a protest Monday in Cairo's Tahrir Square. A coalition of opposition groups called for a million people to take to Cairo's streets Tuesday to demand the removal of Egyptian President Hosni Mubarak. Lefteris Pitarakis/AP hide caption

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U.S. Marines attend a role call on the flight deck of the USS Essex, a multipurpose amphibious assault ship, in November. Defense Secretary Robert Gates says he wants to reduce the Marine Corps by 15,000 to 20,000 in the coming years. Ed Jones/Getty Images hide caption

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