The paper analyzes the policy of the USA towards Central America during the term of office of President Reagan. The introduction traces the history of American interventions in Nicaragua, beginning in 1856, when Nicaragua was the first victim of American expansionism. Then the events in the 20th century are followed, especially in 1912, when the American marines conquered Nicaragua for 13 years, and then in the period from 1926 to 1933. At the end of the historical review, the causes of the crisis in the 1980s are analyzed, when guerrilla forces under the leadership of the FSLN began revolutionary activities, which led to the resignation of Nicaraguan President Debayle in 1979. In 1981, the USA accused the Sandinistas of exporting terrorism to El Salvador and cuts off economic help to Nicaragua, which was seen as supporting rebels in El Salvador. Reagan begins to support guerrilla forces (contras) against the Sandinistas. The second part of the paper analyzes the causes of American involvement in Nicaragua during and after the revolutionary events. The third part of the paper problematizes the role of the US and the actions by the Congress, especially the secret transfer of money from the gains that the US obtained from the sale of arms to Iran. The aforementioned activities became known as the "Irangate" affair. The paper starts from the thesis that the Nicaraguan Revolution represents one of the most tense moments in the Cold War between East and West, given that the ideological background of this process was communism.