On 1 January 1914 , he transferred to the Army 's military aviation branch , joining 1er Groupe d'aviation as a student pilot .
On 1 January 1914 , he received Brevet militaire No. 453 from the military flying school at Avord on 3 April 1914 .
On 1 January 1914 , he transferred to the Army 's military aviation branch , joining 1er Groupe d'aviation as a student pilot , and received Brevet militaire No. 453 from the military flying school at Avord on 3 April 1914 .