 From 20–26 May I "Gruppe" bombed airfields at Norrent-Fontes and St. Omer and French Army positions at Abbeville and Tournai.was also involved in the Battle of Dunkirk and Siege of Calais, with particularly heavy attacks on Dunkirk from 27 May–2 June.II "Gruppe" bombed Calais on 21 May, but focused on the northern flank, bombing ports and airfields from Zeebrugge to Calais.