Ten Incredible Roles Performed By Dogs In Warfare

Man's best friend has been used in warfare since ancient times; and today, thanks to specialized training, these canine combatants are taking on crucial military roles and have become, in effect, guardians of national security.

US representative Walter Jones says, 'Those who have been to war tell me that the dogs are invaluable.' He adds, 'They are just as much a part of a unit as a soldier or marine.' Here's a look at ten of the most incredible security roles military canines have fulfilled over the years.