German shepherd dog, also known as the German black back (shellfish), is often said to be a German wolf dog. This breed is said to be native to Germany. The only thing that can be confirmed is that in 1880 the dog was fixed all over Germany and used as a shepherd dog. They are agile and fit for an action-oriented working environment, and they are often deployed for various tasks. He was then recruited by the German Army during World War I as a military dog. After the German Army drew on its strengths to complement its weaknesses, it was basically finalized. Because of their large size, powerful appearance and strong working ability, they are active as military dogs, police dogs, search and rescue dogs, guide dogs, shepherds, ornamental dogs and domestic pet dogs all over the world.