Field Marshal Erwin Johannes Eugen Rommel ( The `` Desert Fox '' , 15 November 1891 â `` 14 October 1944 ) was an officer of the German Army in World War II . Erwin Johannes Eugen Rommel ( 15 November 1891 â `` 14 October 1944 ) , popularly known as the Desert Fox ( WÃ 1\/4 stenfuchs , ) , was a famous German Field Marshal of World War II .