Career
During the latter conflict, Ambrosio served an instrumental role in the fall of Benito Mussolini and the eventual Italian renunciation of its alliance with Germany. Ambrosio was a native of Turin. He started his military career in 1896 when he joined the Military School of Modena.
In the early 20th century he was named officier in the cavalry.
During the Tripolitanian war, which lasted until 1912, he served with the rank of Tenente in regiment Cavaleggeri di Lucca. In World War I he served as a divisional chief of staff
In 1935 he was appointed to command the XII Army Corps and in 1939 he was promoted to Commander of the Second Army, which was located on the Yugoslav border. Ambrosio"s early actions in, included leading the Italian offensive in Yugoslavia in 1941.
On April 11 his "II Armata" attacked from the north reaching in the next two days -after brief but heavy fightingLjubjana and the outskirsts of Zadar.
On April 15 Ambrosio conquered Split and Kotor. On April 17 all the Dalmatian coast was in his control: his fast conquests were welcomed by the same Mussolini. In May 1943 after a devastating loss at Tunis and the Allied invasion of Sicily Ambrosio attempted to convince Mussolini to pull Italy out of the war and separate from Germany.
When Mussolini became unable to stand against Adolf Hitler, Ambrosio helped as he was removed from power.
After Mussolini was removed from power in July, Ambrosio replaced Ugo Cavallero and served under Pietro Badoglio"s military government as the Chief of the Supreme Command (Comando Supremo). In September, Ambrosio helped negotiate an armistice with the Allies.
The negotiations took longer than expected and allowed the Germans time to occupy much of Italy. Ambrosio was eventually demoted to Inspector-General of the army by Badoglio in November 1943 on insistence of the allies who did not trust him.