The Chilean Military consists of the Army, Navy, and Air Force, responsible for defending the nation and maintaining peace. It operates under the authority of the President of Chile, who serves as the Commander-in-Chief. The military is involved in various roles, including disaster relief and humanitarian assistance. The Chilean Army is the largest branch, followed by the Navy, which includes the Chilean Navy's naval aviation and marine corps. The Chilean Air Force provides aerial defense and support. The military also participates in international peacekeeping missions and collaborates with other nations for training and operations.