A fighting pilot in both world wars, Ambrogi joined the army on September 25, 1914. After two years in the infantry, he transferred to the French Air Service and was assigned to N90 (later Spa90) for the duration of the war.

Médaille Militaire
"A pilot who never ceases to distinguish himself by his spirit, and the ease with which he brilliantly accomplishes his daily duties. He has shot down two adversaries who were seen falling disabled in their own lines. On January 6, 1918, he shot down another enemy plane. Three citations." Médaille Militaire citation

Légion d'Honneur
"Reconnaissance and pursuit pilot beyond compare. Officer of the highest valour. Recently reported his fifth victory by downing an enemy balloon in flames. Médaille Militaire for feats of war. Six citations." Légion d'Honneur citation