Delegates from China's People's Liberation Army (PLA) march from Tiananmen Square to the Great Hall of the People to attend sessions of National People's Congress and Chinese People's Political Consultative Conference Tuesday in Beijing. Ng Han Guan/AP hide caption

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A visitor to a military exhibition in New Delhi, India, on Feb. 6. Global military spending is expected to increase this year for the first time in five years. The biggest increases are expected in China and Russia. Anindito Mukherjee/Reuters/Landov hide caption

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U.S. Army Spc. Simran Lamba (center) was granted a religious accommodation for his Sikh articles of faith, including uncut hair and a turban, in 2010. He was the first enlisted soldier to be given such an accommodation since 1984. Brett Flashnick/AP hide caption

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Earlier this month, Hal Faulkner (left), 79, received his new papers from two Marines after having his military status changed to "honorable discharge." Faulkner died Tuesday. Courtesy of Phil Latzman hide caption

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Army Pfc. Bradley Manning, who now asks to be referred to as Chelsea, dressed as a woman in this 2010 photograph. U.S. Army handout/Reuters/Landov hide caption

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An Egyptian army soldier stands Thursday amid the charred remains of the Rabaah al-Adawiya mosque, in the center of the largest protest camp of supporters of ousted President Mohammed Morsi, that was cleared by security forces in Cairo on Wednesday. Hassan Ammar/AP hide caption

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Women in the U.S. military will be integrated into front-line combat units by 2016, the Pentagon says. Here, female Marine recruits stand in formation during pugil stick training in boot camp earlier this year at Parris Island, S.C. Scott Olson/Getty Images hide caption

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Secretary of Defense Chuck Hagel with U.S. troops in Kabul, Afghanistan, on March 11. Jason Reed/pool/Getty Images hide caption

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Female soldiers from 1st Brigade Combat Team, 101st Airborne Division train on a firing range in Fort Campbell, Ky., in preparation for their deployment to Afghanistan. The Pentagon announced Thursday that women will no longer be banned from combat roles. Mark Humphrey/AP hide caption

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Hospital Corpsman Shannon Crowley, with a Marine Corps. Female Engagement Team, in Musa Qala, Afghanistan, in November 2010. Paula Bronstein/Getty Images hide caption

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The Air Force's U-2 spy plane first took flight in August 1955 and has been in commission ever since. USAF/Getty Images hide caption

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