U.S. and Soviet/Russian nuclear weapons stockpiles/inventories from 1945 to 2006. In early 2019, more than 90% of the world's 13,865 nuclear weapons were owned by Russia and the United States. The treaty legitimizes these states’ nuclear arsenals, but establishes they are not supposed to build and maintain such weapons in perpetuity. Between them, the world's nuclear-armed states have around 15,000 warheads - the majority of which belong to the US and Russia. The nuclear-weapon states (NWS) are the five states—China, France, Russia, United Kingdom, and the United States—officially recognized as possessing nuclear weapons by the NPT. It is estimated that … India has developed and possesses weapons of mass destruction in the form of nuclear weapons.Although India has not made any official statements about the size of its nuclear arsenal, recent estimates suggest that India has 130–140 nuclear weapons and has produced enough weapons-grade plutonium for up to 150–200 nuclear weapons. The failing Soviet economy and the dissolution of the country between 1989-91 which marks the end of the Cold War and with it the relaxation of the arms race, brought about a large decrease in both nations stockpiles. According to Stockholm International Peace Research Institute (SIPRI), the worldwide total inventory of nuclear weapons as of 2019 stood at 13,865, of which 3,750 were deployed with operational forces. The remaining 1,150 weapons … Of the 14,500 nuclear weapons on the planet, Russia and the United States own the lion's share, with a combined total of approximately 13,350 nukes. In 1999, India was estimated to have 800 kg of …