 Between 20–23 June 1940, KG 55 were already operating over the United Kingdom, bombing targets in Bristol and Cardiff flying from forward airfields near Paris.KG 55 flew 886 combat operations against troop concentrations, 725 against rail targets, 406 against airfields, 49 anti-shipping operations and harbour attacks, 148 armed reconnaissance sorties and 46 dropping leaflets for the duration of the French campaign.I./KG 55 flew 897 missions and lost 10 bombers.