Nuclear Warheads By Country (1945-2023)

The world’s nuclear powers have nearly 10,000 nuclear warheads in their arsenals. These weapons have the capacity to kill millions directly and through their impact on agriculture have likely the potential to kill billions. Nuclear weapons technology was developed during the 1930s and 1940s. The first nuclear weapons were detonated over Hiroshima and Nagasaki in August 1945. Since then, controlling the proliferation of nuclear weapons has been an important issue in international relations. Nuclear bombs are powerful weapons that use nuclear reactions as their source of explosive energy. The first atomic bomb was built in Los Alamos, New Mexico, during World War II under a program called the Manhattan Project. The United States of America is the only country to have used nuclear weapons in warfare. They dropped two atomic bombs on the Japanese cities of Hiroshima and Nagasaki in August 1945, killing over 200,000 people. Since then, no other country has used nuclear weapons in warfare. However, se