The following is a list of Polish Armies during World War II, together with their commanders and brigade and division-sized units. For a more detailed list see: Polish army order of battle in 1939. During the Invasion of Poland several divisions were grouped into two units smaller than armies: the Wyszków Operational Group and the Narew Independent Operational Group. See also Air Force of the Polish Army (in the East) Polish Air Forces in France and Great Britain Polish Navy in World War II List of Polish divisions in World War II Polish army order of battle in 1939 Polish contribution to World War II World War II Polish Armies Armies in World War II