In March 1980, FSLN signed several accords with the Soviet Union causing the US President, Jimmy Carter, who had initially authorized aid to the Sandinista government, to approve CIA support for the opposition forces.
Märtsis 1980 sõlmis FLSN Nõukogude Liiduga mitmed lepingud, mistõttu toonane USA president Jimmy Carter, kes algselt oli sandinistide valitsuse abistamist toetanud, andis CIA-le volitused toetada Nicaragua opositsioonijõude.