security force that fully understands the importance of nuclear security." Pakistan had earlier rejected claims in US media that the Obama Administration was worried about the safety of Pakistan's nuclear weapons, saying the country has a professional and robust system to monitor its nukes. National Security Council Economic Coordination Committee (ECC) Development Control Committee (DCC) Employment Control Committee (ECC) Financial Monitoring Unit (FMU) Strategic combat commands Air Force Strategic Command (AFSC) Army Strategic Forces Command (ASFC) Naval Strategic Forces Command (NSFC) Weapons development agencies National Engineering & Scientific Commission (NESCOM) National Development Complex (NDC), Islamabad Project Management Organization (PMO), Khanpur Air Weapon Complex (AWC), Hasanabdal National Centre for Physics (NCP), Islamabad Maritime Technologies Complex (MTC), Karachi Ministry of Defense Production Pakistan Ordnance Factories (POF), Wah Pakistan Aeronautical Complex (PAC), Kamra Defense Science and Technology Organization (DESTO), Chattar Pakistan Atomic Energy Commission (PAEC) Directorate of Technical Development Directorate of Technical Equipment Directorate of Technical Procurement Directorate of Science & Engineering Services Ministry of Industries & Production State Engineering Corporation (SEC) Heavy Mechanical Complex Ltd. (HMC) Pakistan Steel Mills Limited, Karachi. Pakistan Machine Tools Factory Delivery systems Land , Pakistan possesses a wide variety of nuclear-capable medium range ballistic missiles with ranges up to 2750 km. Pakistan also possesses nuclear-tipped Babur cruise missiles with ranges up to 700 km. In April 2012, Pakistan launched a Hatf-4 Shaheen-1A, said to be capable of carrying a nuclear warhead designed to evade missile-defense systems. These land-based missiles are controlled by Army Strategic Forces Command of Pakistan Army. Pakistan is also believed to be developing tactical nuclear weapons for use on the battlefield with ranges up to 60 km such as the Nasr missile. According to Jeffrey Lewis, director of the East Asia Non-proliferation Program at the Monterey Institute of International Studies, citing a Pakistani news article, Pakistan is developing its own equivalent to the Davy Crockett launcher with a miniaturised warhead that may be similar to the W54. Air The Pakistan Air Force (PAF) is believed to have practised "toss-bombing" in the 1980s and 1990s, a method of launching weapons from fighter-bombers which can also be used to deliver nuclear warheads. The PAF has two dedicated units (No. 16 Black Panthers and No. 26 Black Spiders) operating 27 aircraft in each squadron (78 aircraft total) of the JF-17 Thunder, believed to be the preferred vehicle for delivery of nuclear weapons. These units are major part