This paper focuses on the ever-growing area of study developed state of relations with the countries of the "Third World" on the example of the Czechoslovak policy to Chile at the age of superpower "détente", especially the reign of socialist Salvador Allende (1970-1973). Based primarily on Czechoslovak archival documents it challenges expectable and intuitive picture of Czechoslovak policy of the late 60s and early 70s as of "internationalist" policy based on altruist principles.