Editing Lyndon B. Johnson (section)

===Soviet Union===
{{Main|Cold War}}

[[File:Glassboro-meeting1967.jpg|thumb|right|Soviet Premier [[Alexei Kosygin]] (left) next to Johnson during the [[Glassboro Summit Conference]]]]

Though actively engaged in containment in Southeast Asia, the Middle East and Latin America, Johnson made it a priority to seek arms control deals with Moscow.<ref name="brands1">{{cite book|editor=H. W. Brands|title=The Foreign Policies of Lyndon Johnson: Beyond Vietnam|publisher=Texas A&M University Press|url=https://archive.org/details/foreignpolicieso00hwbr|url-access=registration|year=1999|pages=[https://archive.org/details/foreignpolicieso00hwbr/page/19 19]–20|isbn=9780890968734}}</ref> The Soviet Union also sought closer relations to the United States during the mid-to-late 1960s, partly due to the increasingly worse [[Sino-Soviet split]]. Johnson attempted to reduce tensions with [[China]] by easing restrictions on trade, but the beginning of China's [[Cultural Revolution]] ended hopes of a greater rapprochement.<ref>Herring (2008), pp. 730–732</ref> Johnson was concerned with averting the possibility of nuclear war, and he sought to reduce tensions in Europe.<ref>{{cite book|last1=Schwartz|first1=Thomas Alan|title=Lyndon Johnson and Europe: In the Shadow of Vietnam|date=2003|publisher=Harvard University Press|pages=[https://archive.org/details/lyndonjohnsoneur00schw/page/19 19]–20|isbn=9780674010741 |url=https://archive.org/details/lyndonjohnsoneur00schw|url-access=registration|quote=lyndon johnson prelude to detente.|access-date=August 23, 2016}}</ref> The Johnson administration pursued arms control agreements with the Soviet Union, signing the [[Outer Space Treaty]] and the [[Treaty on the Non-Proliferation of Nuclear Weapons]], and laid the foundation for the [[Strategic Arms Limitation Talks]].<ref name="brands1"/> Johnson held a largely amicable meeting with Soviet Premier [[Alexei Kosygin]] at the [[Glassboro Summit Conference]] in 1967, and in July 1968 the United States, Britain, and the Soviet Union signed the [[Treaty on the Non-Proliferation of Nuclear Weapons|Non-Proliferation Treaty]], in which each signatory agreed not to help other countries develop or acquire nuclear weapons. A planned nuclear disarmament summit between the United States and the Soviet Union was scuttled after Soviet forces [[Warsaw Pact invasion of Czechoslovakia|violently suppressed]] the [[Prague Spring]], an attempted democratization of [[Czechoslovakia]].<ref>Herring (2008), pp. 755–757</ref>