Kammala jumla mai zuwa: A watan Disamba na shekarar 1942 an daukaka Rudnicki zuwa Kanal, kuma a watan Afrilu aka nada shi kwamandan na 6th Infantry Division. Ya yi yaƙi a yakin Monte Cassino da
Yaƙin Bologna. A ranar 1 ga Afrilu 1945 an daukaka Rudnicki zuwa Generał brygady, kuma a watan Mayu, bayan yaƙin ya ƙare, an nada shi kwamandan na 1st Armored Division, kuma har zuwa 1947, ya kasance a arewa maso yammacin Jamus.