 During their time on the Western Front , No. 2 and No 4 . Squadrons had been used mainly in the fighter role , while No. 3 Squadron was primarily used for reconnaissance . No. 4 Squadron became the most successful fighter squadron in France , accounting for 199 enemy aircraft , while No. 2 Squadron was credited with the destruction of 185 . The total AFC casualties on the Western Front included 78 killed , 68 wounded and 33 taken prisoner . Following the end of the war on 11 November 1918 , No. 4 Squadron was the only Australian unit assigned to the British Army of Occupation , arriving in Germany in December and being based in Cologne . The three AFC squadrons subsequently handed over their equipment to the RAF in February 1919 and returned to Australia where they disbanded . 
