Ƙirƙirar wani nau'i mai mahimmanci na wannan jumla An yi amfani da hotline na gaba (banda gwaje-gwaje) a lokacin yakin kwana shida a shekarar 1967.
Tabbas, mafi rikitarwa na jumla ita ce "An sake amfani da layin mai zafi a cikin 1967, a lokacin Yakin Rana Shida, lokacin da manyan ƙasashe biyu suka sanar da juna game da ayyukan soja waɗanda ƙila sun kasance masu tayar da hankali ko rashin fahimta. "