During World War I, Hitler was temporarily blinded in a mustard gas attack on 15 October 1918 for which he was hospitalised in Pasewalk. While there, Hitler learned of Germany's defeat, with the Armistice to take effect on 11 November. By his own account—upon receiving this news, he suffered a second bout of blindness. Days after digesting this traumatic news, Hitler later stated his decision: "... my own fate became known to me ... I ... decided to go into politics." On 19 November 1918, Hitler was discharged from the Pasewalk hospital and returned to Munich, which at the time was in a state of socialist upheaval. Arriving on 21 November, he was assigned to 7th Company of the 1st Replacement Battalion of the 2nd Infantry Regiment. In December he was reassigned to a Prisoner of War camp in Traunstein as a guard. There he would stay until the camp dissolved January 1919.