From Longman Dictionary of Contemporary Englishdétentedé‧tente, detente /ˈdeɪtɒnt, deɪˈtɑːnt $ deɪˈtɑːnt/ noun [uncountable] PGPPa time or situation in which two countries that are not friendly towards each other agree to behave in a more friendly way
Examples from the Corpus
détente• Between the Labour government and the unions there was an uneasy détente at the start of 1977.Origin detente (1900-2000) French détente, from Old French destendre “to loosen”, from tendre “to stretch” 