සැකිල්ල:පළමු, දෙවන සහ තුන්වන ලෝක

The "three worlds" of the Cold War era, as of the period between April 1975 (the fall of Saigon) and August 1975 (the communist takeover in Laos).

  First World: United States, United Kingdom and their allies.

  Second World: Soviet Union, China, and their allies.

  තුන්වෙනි ලෝකය: neutral සහ නොබැඳි රටවල්.