Some coast guards, such as the Irish Coast Guard, have only a very limited law enforcement role, usually in enforcing maritime safety law, such as by inspecting ships docked in their jurisdiction. In cases where the coast guard is primarily concerned with "coordinating" rather than executing rescue operations, lifeboats are often provided by civilian voluntary organisations, such as the Royal National Lifeboat Institution in the United Kingdom, whilst aircraft may be provided by the countries' armed forces, such as the search and rescue Sea Kings operated by the Royal Air Force and Royal Navy, in addition to any of the HMCG's own helicopters.