1. Executive Summary Subject: Lieutenant (Tenente) Giulio Cesare Colombo Nationality: Italian Role: Fighter Pilot, Regia Aeronautica (Royal Italian Army Air Service) Era: World War I (1915–1918) Notable Unit: 91ª Squadriglia (Squadron) – known as "Squadron of the Aces" Status: Credited with several aerial victories; posthumously awarded the Medaglia d'Argento al Valore Militare (Silver Medal of Military Valor).