The chart illustrates a significant reduction in global nuclear arsenals from 1945 to 2015, highlighting the peak and subsequent decline in the number of nuclear warheads. The data reveals that the global total of nuclear warheads reached its zenith around 1985, with approximately 65,000 warheads. This peak was primarily driven by the arms race between the USA and Russia, with both countries contributing significantly to the global total. The USA's nuclear arsenal peaked earlier, around 1965, with about 15,000 warheads, while Russia's arsenal continued to grow until the mid-1980s, reaching around 40,000 warheads. Post-1985, there is a marked decline in the number of nuclear warheads, reflecting international disarmament efforts and treaties aimed at reducing nuclear stockpiles. By 2015, the global total had decreased to approximately 10,000 warheads, with the USA and Russia holding around 6,000 and 4,000 respectively. This trend underscores the success of diplomatic efforts in curbing nuclear proliferation and the shift towards a more secure global environment. The data also highlights the changing dynamics of nuclear power, with the USA and Russia still holding the majority of the world's nuclear arsenal, albeit at significantly reduced levels compared to their Cold War peaks. This reduction in nuclear weapons is a testament to the ongoing commitment to global peace and security.