On 17 October 1915, he was commissioned
second lieutenant in the
Wiltshire Regiment. On 20 November 1917, he was seconded to the
Royal Flying Corps as a
lieutenant and a
flying officer. By mid-1918, Davies was posted to 150 Squadron in
Salonika as a
Sopwith Camel pilot. He scored his first aerial victories on 12 June 1918, when he set one
Albatros D.V afire and destroyed another. His second successful day saw him become an ace, as he destroyed two more Albatros D.Vs in one dogfight on 17 July, then drove another down out of control an hour and a half later. Six days later, he teamed with John Preston to destroy another. On 8 August, he drove down two enemy fighters out of control. Ten days later, he rounded off his victory string by driving down another pair of Albatros D.Vs out of control. He earned the Distinguished Flying Cross for his prowess. It was announced in
The London Gazette on 2 November 1918:
List of aerial victories All victories gained while posted to No. 150 Squadron based at
Salonika, Greece. ==Between the wars==