Handout file photo dated May 25, 2010 shows multiple munitions maintainers from around the Pacific assemble BLU-109 munitions in the small bomb pad during the Combat Ammunitions Production Exercise at Osan Air Base, South Korea. The munitions Israel used to kill Hezbollah’s leader, Hassan Nasrallah, have been identified as US-supplied “bunker-busting” bombs. A video published by the Israel Defence Forces (IDF) showed eight planes taking off fitted with about 15 900kg bombs. Dr Nic Jenzen-Jones, director of arms intelligence consultancy Armament Research Services (ARES), identified the bombs as BLU-109s, also known as “bunker-busters” as they are capable of destroying military bunkers deep underground. U.S. Air Force photo/Staff Sgt. Stephenie Wade via ABACAPRESS.COM