Answer:
It was also decided that airplanes could only be used for reconnaissance or spying missions. (Villard-227) “The airplane may be all very well for sport, but for the army it is useless” (Quoted in Villard-227) Even by the beginning of the war in 1912, the use of planes in war was still prohibited by the War Office.
The first use of airplanes in World War I was for reconnaissance. The airplanes would fly above the battlefield and determine the enemy's movements and position. One of the first major contributions of airplanes in the war was at the First Battle of the Marne where Allied reconnaissance planes spotted a gap in the German lines. The Allies attacked this gap and were able to split the German armies and drive them back.