Germany's Nazi government was so angry about a dog trained to imitate Hitler that it started an obsessive campaign against its Finnish owner, according to newly discovered documents.

In the middle of World War II, the Foreign Office in Berlin commanded its diplomats in the Nazi-friendly Nordic country to gather evidence on the dog, and even came up with plans to destroy the pharmaceutical wholesale company of the dog's owner.

The dog, Jackie, was a mutt owned by Tor Borg, a businessman from the Finnish city of Tampere. Borg's wife Josefine, a German citizen known for her anti-Nazi sentiments, dubbed the dog Hitler because of the strange way it raised its paw high in the air like Germans greeting the Fuehrer with a cry of "Heil Hitler!"

On January 29, 1941, German Vice Consul Willy Erkelenz in Helsinki wrote that "a witness, who does not want to be named, said ... he saw and heard how Borg's dog reacted to the command 'Hitler' by raising its paw."

The different ministries that were involved in the dog scandal — the foreign office, the economy ministry and even Hitler's Chancellory — meticulously reported all their findings about the canine.