A Second Lieutenant is the entry-level rank for officers in the military, typically found in branches like the Army, Navy, Air Force, and Marine Corps. They usually hold a commission after completing officer training programs, such as the Reserve Officer Training Corps (ROTC) or the United States Military Academy at West Point. In their role, Second Lieutenants are responsible for leading small units, managing personnel, and executing orders from higher-ranking officers. They often serve as platoon leaders, overseeing the training and welfare of their soldiers or airmen while gaining valuable experience for future promotions.