After a photo of Lanny Martinson's dog tag was placed on Facebook and elsewhere, Marines and veterans helped track him down. Martinson lost the tag in Vietnam in 1968. Facebook hide caption

"Velvet Eyes" — a pet reindeer belonging to Carl Emmons — stands in the back of a pickup truck outside a market and gas station in Nome, Alaska. David Gilkey/NPR hide caption

The scene in a Wal-Mart store in Alexandria, Va. /AP hide caption

Joe Rosner of The Mission Continues. Courtesy of The Mission Continues hide caption

U.S. soldiers receive refreshments, including doughnuts, from an American Red Cross clubmobile in London. Soldiers today still resent a Red Cross move to charge for doughnuts. Library of Congress hide caption

Women's Correctional Community Center inmate Lilian Hussein checks on ti leaves she planted as part of the prison's farming and gardening program in Kailua, Hawaii. The green ti leaves are often used to wrap food or weave into leis. Jennifer Sinco Kelleher/AP hide caption

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April 20: Soldiers from the U.S. Army 3rd Infantry Regiment, also called "The Old Guard," carry U.S. Army Corporal Justin Ross' flag-draped casket during his burial ceremony at Arlington National Cemetery. Ross, 22, of Green Bay, Wis., died March 26 in Helmand province, Afghanistan. Chip Somodevilla/Getty Images hide caption