Apollo–Soyuz Test Project made the Soviet Union's policy of détente official in his 1956 doctrine of peaceful coexistence at the 20th Congress of the Communist Party of the Soviet Union, the two nations seemed to be in perpetual conflict. Due to tense relations, space cooperation between the United States and the Soviet Union was unlikely in the early 1970s. On June 7, 1971, the USSR had launched the first piloted orbital space station, Salyut 1. Meanwhile, the United States had launched the Apollo 14 mission several months prior, the third spacecraft to land humans on the moon. Each side gave the other little
Apollo (spacecraft) Apollo flights, and fifteen manned Apollo, Skylab, and Apollo-Soyuz Test Project flights. The disposition of all command modules, and all unflown service modules is listed at Apollo command and service module#CSMs produced. (All flown service modules burned up in the Earth's atmosphere at termination of the missions.) The disposition of all lunar modules is listed at Apollo Lunar Module#Lunar modules produced. Apollo (spacecraft) The Apollo spacecraft was composed of three parts designed to accomplish the American Apollo program's goal of landing astronauts on the Moon by the end of the 1960s and returning them safely to Earth. The expendable (single-use)