Whakakiia te rerenga e whai ake nei: I mahi te M21 i te Runga o te Hauauru, i kite i te mahi i Normandy me i
ki te tonga o Parani, i mua i te whakamahinga i muri mai i te Pakanga o te Bulge, te Pakanga o Belgium, Operation Market Garden, me te whakaekenga o Tiamana mai i te hauauru. I mahi te M21 me te US 3rd, 1st, me te 7th Armies i te pakanga i Parani, me te 2nd Armored Division, i whakawhanakehia e ia. Hei taapiri, 57 nga tauira i riihi ki nga ope French Free. I te tau 1945, i kiia kua tawhitotia, na te kore kaha o te 81 mm motika hei patu patu.