The incredible bond between an army dog and its handler: German Shepherd Duo Duo sits on hind legs to salute its carer who is retiring

Showing that dogs are a man's best friend, whether you are in or out of uniform.

"This touching picture captures the incredible bond between army dog Duo Duo and its handler Wang Xudong. Duo Duo, in eastern China, sat up to show respect to Wang who was retiring yesterday.

With their absolute loyalty, great senses and fast movements, dogs have been used as companions and colleagues for soldiers worldwide."

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