The first guide dog training schools were established in Germany during World War I , to enhance the mobility of returning veterans who were blinded in combat , but interest in guide dogs outside of Germany did not become widespread until Dorothy Harrison Eustis , an American dog breeder living in Switzerland , wrote a first-hand account about a guide dog training school in Potsdam , Germany , that was published in The Saturday Evening Post in 1927 .
Germany started the first guide dog schools during World War 1 , to help soldiers who were blinded in the war .