<prompt> Ke linaha tse kae tse etsang European Union?nan  <response>: Instruction in English: How many countries make up the European Union? . Response in English: The European Union EU is composed of 27 member countries as of 2021. . Response in Sesotho: European Union EU e entsoe ka linaha tse 27 tseo e leng litho ho tloha ka 2021. 