Because of Cuba’s sensitive economic situation, Castro had no choice but to fall in line behind the Soviets, a position which greatly undermined his leadership position.
The United States attempted to convert Islamic and other Third World criticism of the Soviet Union into a trend accelerating association with the US; however, most of the non-aligned nations were intent on remaining so.
The era of Soviet boldness came to an end when — in the aftermath of the Iranian Revolution — militants seized the American embassy.
Third World governments — Oman, Somalia, Kenya — were soon approached regarding continuing American access to naval and air facilities, and a sizable American fleet came to be stationed in the Indian Ocean.
The problems in Iran exacerbated existing fears that the Soviets were involved in creating a broad arc of crisis reaching from Africa throughout Southeast Asia, representing a sweeping assault on the status quo.