The Irish Air Corps is the air component of the Defence Forces and operates sixteen fixed wing aircraft and eight helicopters. The Irish Naval Service is Ireland's navy, and operates eight patrol ships, and smaller numbers of inflatable boats and training vessels, and has armed boarding parties capable of seizing a ship and a special unit of frogmen. The military includes the Reserve Defence Forces (Army Reserve and Naval Service Reserve) for part-time reservists. Ireland's special forces include the Army Ranger Wing, which trains and operates with international special operations units. The President is the formal Supreme Commander of the Defence Forces, but in practice these Forces answer to the Government via the Minister for Defence.