The K-9 Military Working Dog Unit at Camp Pendleton trains K-9 dogs for deployment into Iraq and Afghanistan at a specially-designed facility on base in San Diego, Calif., in 2010. There are reports that a dog was used during the mission to kill Osama bin Laden on May 1. Zuma Press/Newscom/File
A dog attacks an instructor during training at the Ukrainian border guard dog training center near Velyki Mosty village, Ukraine, in 2009. Every year, the biggest dog training center in the former Soviet Union prepares hundreds of trained dogs for Ukrainian border guards as well as for presidential guards and other special forces. Gleb Garanich/Reuters/File
Staff Sergeant Marcus King, Security Forces military working dog (MWD) handler, trains MWD Laika at Spangdahlem Air Base, Germany, in 2007. Stephanie Clark/US Air Force/AP Photo
Dogs jump during training at the Ukrainian border guard dog training center near Velyki Mosty village, Ukraine, in 2009. Gleb Garanich/Reuters/File
A military sniffer dog accompanies a Royal Engineers patrol from their base in Nahr e Saraj village to search for improvised explosive devices (IEDs) in Helmand province, Afghanistan, in 2010. Bay Ismoyo/AFP/Getty Images/Newscom/File
An Iraqi police dog handler watches a bomb-sniffing dog jump a obstacle during a training session at the police college in Baghdad, Iraq in 2010. The American military was rushing the delivery of bomb detection dogs to Iraq. Karim Kadim/AP/File
Israeli infantry soldiers and a dog participate in an exercise of integrated urban warfare that simulates fighting a war in Gaza at the Tze'elim urban warfare center in southern Israel on March 31. Photo by Rafael Ben-Ari/Chameleons Eye/Newscom/File
Sergeant Major Damir Mikocinec from Croatia's Army ISAF contingent exercises with his dog named Cash inside their base at Camp Warehouse in Kabul, Afghanistan, in 2009. Nikola Solic/Reuters/File
A dog snarls during training at the K-9 Military Working Dog Unit at Camp Pendleton in San Diego, Calif., in 2010. Zuma Press/Newsom/File
A dog disarms an instructor during training at the Ukrainian border guard dog training center near Velyki Mosty village, Ukraine, in 2009. Gleb Garanich/Reuters
US Army 1st Sgt. Chris Lalonde (c.) holds on to his military working dog, Sgt. Maj. Fasco, with jumpmaster Kirby Rodriguez behind them, as they land on Gammon Parade Field after making history with the military's first tandem airborne jump from an altitude of 12,500 feet during Military Police Warfighter Week, at Fort Leonard Wood, Mo., in 2009. Ben Morrow/DOD/Sipa Press/Newscom/File
Instructors stand with their dogs at the Ukrainian border guard dog training center near Velyki Mosty village, Ukraine, in 2009. Gleb Garanich/Reuters/File
British soldier Lance Corporal Liam Tasker watches his military working dog Theo, a Springer Spaniel, during a training session in Camp Bastion, Afghanistan, on Feb. 10. Lance Corporal Tasker was shot dead in Afghanistan on March 1, and his dog died of a seizure shortly after. Corporal Mark Webster/MoD/Crown/Reuters/File
An Austrian army dog stands next to Austrian soldiers during a farewell ceremony ahead of their assignment to eastern Chad in Vienna in 2008. Heinz-Peter Bader/Reuters/File
A Belarusian border guard's dog runs over the backs of soldiers at a military dog training facility in Smorgon, Belarus, in 2009. Viktor Drachev/AFP/Getty Images/Newscom/File
Airborne lasers produced a detailed map of the lost city of Mahendraparvata, including highways and previously undiscovered temples, hidden beneath dense vegetation in Cambodia.
Airborne laser technology has uncovered a network of roadways and canals, illustrating a bustling ancient city linking Cambodia's famed Angkor Wat temples complex.
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