Convention on the Prohibition of Military or Any Other Hostile Use of Environmental Modification Techniques (ENMOD Convention)
U.S. Department of State
Signed in Geneva May 18, 1977
Entered into force October 5, 1978
Good narrative about the Convention
"Each State Party to this Convention undertakes not to engage in military or any other hostile use of environmental modification techniques having widespread, long-lasting or severe effects as the means of destruction, damage or injury to any other State Party."
The United States (U.S.) government, past to present, relies on its military defense resources for its primary means of protection against exterior threats. Advances in weapons development help to accomplish this task.