A nuclear attack involves the use of nuclear weapons, which release massive amounts of energy through nuclear reactions. These weapons can cause widespread destruction and loss of life in an instant. When detonated, a nuclear bomb creates a powerful explosion, intense heat, and deadly radiation, affecting everything within a large radius. The aftermath can lead to long-term environmental damage and health issues for survivors. Countries like the United States and Russia possess nuclear arsenals, which are often a part of their military strategies. The threat of nuclear attacks has led to international treaties aimed at preventing their use and promoting disarmament. These efforts are crucial for global peace and security.