April 9 and 10 1941, in Greece

Up through 9 April, the Greeks had been engaging Italian troops in Albania. The threat from the German moves caused General Papagos to disengage and withdrew to a line that went from the west coast to the "big bend" in the Aliakmon river, to the southwest of Servia. By the 10th Mackay force was firing on the vanguard of the SS Leibstandarte Adolf Hitler Division. On 10 May, General Papagos ordered General Wilson to withdraw to the line of the "Olympus-Servia-Lake Prespa" position. General Wilson had positioned his Greek divisions on his left flank. These were the Greek 12th and 20th Divisions. General Wilson was getting nervous about his Greek divisions as they had little or no transport and seemed to lack cohesion. This is based on the account in Vol.II of the Official History.