The answer is the last one! Détente ended<span> after the </span>Sovietinvaded<span> in Afghanistan, that led to the </span>United States<span> boycott of the 1980 Olympics in Moscow. Ronald Reagan's election as president in 1980, also took part in a large sum on an anti-</span>détente<span> campaign, this made the close of </span>détente<span> and a return to Cold War. </span> I hope I helped! -Jailbaitasmr
