 Complete the following phrase:  Cunningham was promoted to flight lieutet on 12 March 1940. In April the squadron flew as escort for a De Havilland Flamingo carrying Winston Churchill, First Lord of the Admiralty, to Paris to attend a meeting after the German invasion of Denmark and Norway. Most of the units time during the Phoney War was spent in intensive training over the Wash which included co-operation with searchlights and mine-laying operations. On 15 May, 604 relocated to RAF Manston. From the airfield Cunningham flew sorties over the English Channel and patrols 