Duncan Grinnell-Milne was one of that select band of young men who made history in the air between 1915 and 1918 when they learned to fly in machines that resembled box-kites and laid the foundations of aerial combat which future generations would follow. He became a flying ace, with six confirmed aerial victories, and he spent two years as a prisoner of war before escaping from German captivity to fly and fight again. He took part in the great aerial offensive of 1918 which contributed to the winning of the war. The two books he wrote about the war in the air, his capture and escape are among the most exciting accounts by a pilot of the Royal Flying Corps – they are classics of their kind.
Initially posted to No. 16 Squadron RFC, where on 28 November, flying a BE.2c, he was shot down an Albatros C.I over Sequedin. Only days later, on 1 December, he was forced down behind the German lines and captured.