In this video image, President Obama speaks to the nation from the Oval Office about the end of the U.S. combat role in Iraq. APTN hide caption

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The National Museum of Nuclear Science and History, originally established in 1969, is a congressionally chartered Smithsonian affiliate. Courtesy of the Museum of Nuclear Science and History hide caption

itoggle caption Courtesy of the Museum of Nuclear Science and History

Cindy Lohman is seen holding a photo of her son Ryan, who was killed by a bomb in Afghanistan. She says she feels betrayed by Prudential, his life insurance company. Bill Cramer/Bloomberg hide caption

itoggle caption Bill Cramer/Bloomberg

Ron Capps spent 25 years in the Foreign Service and the Army Reserve. Like many other soldiers, he suffers from PTSD, but unlike some others he asked for help. Courtesy of Ron Capps hide caption

itoggle caption Courtesy of Ron Capps