09/05/1979
https://www.presidency.ucsb.edu...
"The exports being curtailed by this action make a significant contribution to the military potential of the Soviet Union that is detrimental to the national security of the United States."
"We must show the Soviet Union that it cannot expect to continue to do business as usual with the United States while it is invading and occupying an independent nation."
"The Soviet invasion of Afghanistan and the installation of a puppet government is an extremely serious threat to peace."
"The absence of such controls would prove detrimental to the foreign policy and national security interests of the United States."