Nyora kupfuurira kweiyi ndima - Muna August 1941, 1st Cavalry Division yakarongedzerwazve se10th Armoured Division. Clark akaramba ari mutungamiri kusvikira muna Kubvumbi 1942 nokudaro achirasikirwa nebasa rinoshanda rechikamu paAlam Halfa uye Hondo yechipiri yeEl Alamein. Akava GOC Lines of Communication muTunisia uye gare gare mutevedzeri Gavhuna weSicily mushure mekutorwa kwayo muna 1943
. Pakupera kwa1943 akava Major-General Administration paGHQ Middle East muCairo asati ava Chief Administrative Officer kuAllied Forces Headquarters (AFHQ) kwaakabata chinzvimbo chelieutenant-general.