Kammala wannan jumla: Ko da yake ya tsunduma cikin ayyukan dakile a kudu maso gabashin Asiya, Gabas ta Tsakiya da Latin Amurka, Johnson ya sanya shi fifiko don neman yarjejeniyar kula da makamai tare da Moscow. Har ila yau, Tarayyar Soviet ta nemi kusanci da Amurka a lokacin tsakiyar zuwa ƙarshen shekarun 1960, a wani ɓangare saboda mummunan rabuwa tsakanin Sin da Soviet. Johnson ya yi kokarin rage tashin hankali da China ta hanyar sassauta takunkumin kasuwanci, amma farkon juyin juya halin al'adu na kasar Sin ya kawo karshen fatan samun kusanci. Johnson ya damu da gujewa yiwuwar yakin nukiliya, kuma ya nemi rage tashin hankali a Turai. Gwamnatin Johnson ta bi yarjejeniyar kula da makamai tare da Tarayyar Soviet, ta sanya hannu kan Yarjejeniyar Sararin Samaniya da Yarjejeniyar Rashin Yada Makaman Nukiliya, kuma ta aza harsashin tattaunawar iyakance makamai. Johnson ya gudanar da babban taron abokantaka tare da Firayim Ministan Soviet Alexei Kosygin a taron Glassboro Summit Conference a shekarar 1967, kuma a watan Yulin 1968 Amurka, Burtaniya, da Tarayyar Soviet sun rattaba hannu kan Yarjejeniyar Rashin Yaduwa, wanda kowane mai sa hannu ya amince ba zai taimaka wa wasu ƙasashe su ci gaba ko samun makaman nukiliya ba. An soke taron kolin da aka shirya tsakanin Amurka da Tarayyar Soviet na rage makaman nukiliya bayan sojojin Soviet
da karfi ya dakile Prague Spring, wani yunkurin dimokuradiyya na Czechoslovakia.