 Nyorai kupfuurira kweiyi ndima - Mukati mehondo yeVietnam, vaChinese vakataura kuti Soviet Union yaizotengesa North Vietnam. Mutungamiri weChina Zhou Enlai akaudza Lê Duẩn kuti maSoviet aizovanyepera kuti avandudze ukama hwayo neUnited States. Maererano naZhou mutemo uyu wakagadzwa zvichitevera kuenda kwaAlexei Kosygin kubva kuVietnam muna 1965. Lê Duẩn haana kugamuchira uyu murangariro uye pa 23rd Party Congressiyo China yakaramba akataura nezveSoviet Union semusha wechipiri. Nemhaka yechirevo chake, China yakavamba pakarepo kuderedza betsero yayo kuNorth Vietnam. Maererano nomunyori wokutanga pahofisi yeSoviet yokuChina, vokuNorth Vietnam vakaona zviito zveChina sokurwiswa kwavo. Pakupemberera makore makumi mana nemashanu ekuumbwa kweChinese Communist Party, panzvimbo pekutaura naHồ Chí Minh, Phạm Văn Đồng na Lê Duẩn sezvakaitika pagore rechi44, Central Committee yeVietnam yakapa kwaziso yepamutemo, asi pasina masiginecha kubva kuvakuru vakuru. 