In 1919 she sailed to North America and visited ports in the United States as well as Halifax, Canada. The ship was mostly inactive in 1921 because of personnel shortages, and was refitted at La Spezia from November to March 1922. "Conte di Cavour" and "Giulio Cesare" supported Italian operations on Corfu in 1923 after an Italian general and his staff were murdered at the Greek–Albanian frontier; Italian leader Benito Mussolini, who had been looking for a pretext to seize Corfu, ordered Italian troops to occupy the island. "Conte di Cavour" bombarded the main town on the island with her 76 mm guns, killing 20 civilians and wounding 32. She escorted King Victor Emmanuel III and his wife aboard "Dante Alighieri" on a state visit to Spain in 1924, and was placed in reserve upon her return until 1926, when, in April, she conveyed Mussolini on a voyage to Libya. The ship was again placed in reserve from 1927 until 1933, when she began her reconstruction.