Weapons are arms or tools that are used for inflicting some harm or damage on human beings. Weapons are used in warfare to cause wholesale destruction. Weapons can inflict both mental and physical damage on human beings. Weapons serve a variety of purpose as they can be used for hunting, fighting, defense, waging a war, preserving law and order. Disarmament is the practice which disapproves the use of weapons. Weapons should be used for constructive purposes rather than destructive purposes. Weapons are misused by terrorist groups at times, to wage a war uselessly. Such wars cause great destruction and loss of life and property. In the words of Ronald Reagan, “I call upon the scientific community in our country, those who gave us nuclear weapons, to turn their great talents now to the cause of mankind and world peace: to give us the means of rendering these nuclear weapons impotent and obsolete.”