During the war he undertook war related work and in 1941 was assigned to the naval college in Flensburg as a teacher for mathematics and mechanics.
Sa panahon ng digmaan siya undertook digmaan na may kaugnayan sa trabaho at sa 1941 ay nakatakda sa hukbong-dagat na kolehiyo sa Flensburg bilang isang guro para sa matematika at mechanics.