Is Vietnam a first world country?

Vietnam is not considered a first world country. The term "first world" is a Cold War term used to refer to countries that aligned themselves with the United States and other Western capitalist countries. These countries were typically democracies with strong economies and high living standards. The term "third world" was used to refer to countries that aligned themselves with the Soviet Union and other communist countries. These countries were typically authoritarian regimes with centrally planned economies and low living standards. Today, the terms "first world" and "third world" are no longer widely used, as they are considered outdated and inaccurate. Many countries that were once considered third world countries have now experienced significant economic growth and development and are considered middle-income countries. Vietnam is one such country. It is classified by the World Bank as a lower-middle-income country.