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A small puppy wandered up to U.S. Marines from Alpha Company, in Marjah, Afghanistan. After following the Marines numerous miles, a soft hearted Marine picked the puppy up and carried the puppy in his drop pouch. awwww

Senior Airman Stephen Hanks, 447th Expeditionary Security Forces Squadron military working dog handler and Geri, a 3-year-old patrol explosive detector dog, take a break after a hard day of training in their kennel at Baghdad, Iraq, Dec. 9. Geri is one of two military working dogs left in Iraq today. // Credit: Master Sgt. Cecilio Ricardo

Dogs like Cairo are outfitted with night vision cameras that transmit what the dog can see to the handler on a special monitor, allowing the handler to help visually scan a room for danger before moving in. The dog would be wearing ear buds connected to the handler's microphone, allowing him to respond to even whispered commands to help insure the safety of the dog and the handler, as well as the rest of the team behind them. www.planetdogblog...

Slain Navy SEAL Jon Tumilson's dog "Hawkeye" lies next to his casket during funeral services in Rockford, Iowa. Tumilson was one of 30 American soldiers killed in Afghanistan on August 6 when their helicopter was shot down during a mission to help fellow troops who had come under fire.

Marines and their military dogs. U.S. Marines attached to 1st Battalion, 6th regiment, Charlie Company relax with their bomb-sniffing dogs Books and Good one in Huskers camp on the outskirts of Marjah in central Helmand on Jan. 25, 2010.

Dereck Stevens bonds with his military working dog before a practice drill at Lackland Air Force Base in San Antonio. Photo credit: Bryce Harper, New York Times

War Dog Memorial at the March Air Reserve Base in Riverside. During the Vietnam War, more than 4,000 dogs served in various positions, said Michael Lemish, a military dog historian and author of “Forever Forward: K-9 Operations in Vietnam.”

Rebecca Frankel of Foreign Policy, created a wonderful gallery about the dogs of war: www.foreignpolicy...