Nyorera kupfuurira kweiyi ndima - Kubva kuEton, Grigg akabatana neBritish Army uye akagadzwa semutevedzeri wechipiri muhurumende yababa vake, maGrenadier Guards, muna 1943 munguva yeHondo Yenyika Yechipiri (1939<unk>1945). Paaive muBritish Army, Grigg akashanda semukuru wevarindi paSt James's Palace neWindsor Castle, Berkshire, uye akaona chiito semutungamiriri weplatoon mu1st Battalion, Grenadier Guards, chikamu che5th Guards Armoured Brigade yeGuards Armoured Division, vachipesana neGerman Army muFrance neBelgium
. Pakupera kwehondo, akava mukuru mukuru wezvitsvakurudzo.