In 2011 the RAF played a significant role in the NATO intervention in Libya. The British participation was codenamed Operation Ellamy and the RAF contribution involved the deployment of Typhoon multirole fighters, Tornado GR4 interdictor/strike aircraft, Sentry AEW.1 AWACS aircraft, a Nimrod R1 signals intelligence aircraft, a Sentinel R1 airborne standoff radar aircraft, VC10 air-to-air refuelling tankers and TriStar air-to-air refuelling tankers.