The Air Corps is tasked with the traditional air-force role of defending Irish airspace; however, its practical capability to do so is severely limited and it has no aerial fighter or bomber capability at present. The Air Corps provide support to the Army and Naval Service, together with non-military air services such as the Emergency Aeromedical (air ambulance) Service, VIP transport, and search and rescue (in support of Coast Guard search and rescue efforts). The Air Corps' helicopters are the only helicopters within the state capable of flying at night in mountain terrain using night-vision technology.