At the end of 1945, the New Zealand troops under the command of the General Freyberg entered Trieste and settled in the castle, making many changes to the interior. The British troops followed, and set up the headquarters of XIII Corps in Miramare. Finally the Americans came and the castle served as headquarters for the American garrison Trieste United States Troops (TRUST) from 1947 to October 3, 1954. The Superintendence immediately began the work of restoration of the interior of the castle and the "Castelletto" and the layout of the park. On the basis of drawings and period photographs, wood decorations were restored in the rooms and furniture, furnishings, pictures and tapestries were rearranged.