On 22 June 1940, remnants of GC III/3 withdrew to Realizane in Algeria, but that same day France surrendered. The defeated French Air Force discharged its Czechoslovak personnel on 1 July. A group including Kuttelwascher travelled by train to Casablanca in Morocco, where Czechoslovak personnel were assembling to escape to the UK. On 9 July, they left the Port of Casablanca aboard a Scottish ferry, the , which took them to Gibraltar. On 19 July, they sailed from Gibraltar aboard the Elder Dempster Lines ship "David Livingstone", reaching Cardiff Docks in Wales on 5 August.