Photo AI
Last Updated Sep 26, 2025
Revision notes with simplified explanations to understand Foreign affairs quickly and effectively.
246+ students studying
Leonid Brezhnev
Nikita Khrushchev
Sino-Soviet relations deteriorated after Khrushchev's leadership. When Leonid Brezhnev came to power in 1964, China was in crisis because of Mao's Cultural Revolution.
In March 1969, the Sino-Soviet border conflict occurred near Zhenbao (Damansky) Island on the Ussuri River, near Manchuria.
In the early 1960s, the Soviet Border Service began reporting increased Chinese military activity at the eastern border. By 1968, the Soviets stationed about 375,000 troops, 1,200 aircraft and 120 medium-range missiles. Meanwhile, China had over 1.5 million men at the border.
The Sino-Soviet relations further worsened with the Soviet invasion of Czechoslovakia in August 1968 and the implementation of the Brezhnev Doctrine. Mao viewed the policy as a means to justify Soviet invasion of China. Mao also thought that the Soviets would overthrow him, similar to the event in Czechoslovakia.
Soviet Border Troops
On 23 August 1968, Zhou compared the Soviet invasion to the American involvement in Vietnam, and to Hitler's policies towards Czechoslovakia before WWII.
As the Vietnam War went on, China assured the US that it would not get involved with the communists of North Vietnam unless the US threatened its southern border. China was cautious in the Indochina conflict, which brought dismay to the North Vietnamese.
US President Nixon wanted to improve its relationship with China. As tension escalated between the Chinese and the Soviets during the 1960s, Nixon saw this as an opportunity.
Richard Nixon
Henry Kissinger
He sent Henry Kissinger, a US emissary, on a secret trip to China. The US assured the Chinese government that it would withdraw its troops from Vietnam and they'd settle their differences over Taiwan. In 1972, Nixon was invited by Mao to visit his country, and Nixon accepted.
Developed during the Vietnam War by Kissinger, triangular diplomacy was utilised to manage US relations with the USSR and China. The policy particularly used the ongoing rivalry between the USSR and China, following the Sino-Soviet split, as an advantage to strengthen American diplomatic relations.
Triangular Diplomacy
Triangular diplomacy was also a way to diminish US involvement in the Vietnam War and to develop the détente. Hence, triangular diplomacy was instrumental to the gradual relaxation of tensions between the US and the USSR.
According to Kissinger, an effective foreign policy needs to rely on a combination of diplomacy and military power. In order to attain international stability, a balance of power should be first established.
Between 1969 and 1977, Kissinger was instrumental to US foreign policy. As National Security Advisor, he negotiated the SALT I and Anti-Ballistic Limitation Talks with Brezhnev.
Aside from easing the tension between the US and the USSR, Kissinger played a crucial role in the 1971 talks with Zhou Enlai, the first premier of the PRC, which resulted in the new Sino-American agreement.
Strategic Arms Limitation Talks
Kissinger's efforts ended the 23 years of diplomatic isolation and mutual hostility between the US and China with the 1972 summit attended by Nixon, Zhou and Mao. In 1973, he was awarded a Nobel Peace Prize for his contributions to the US withdrawal from Vietnam.
Enhance your understanding with flashcards, quizzes, and exams—designed to help you grasp key concepts, reinforce learning, and master any topic with confidence!
290 flashcards
Flashcards on Foreign affairs
Revise key concepts with interactive flashcards.
Try History Flashcards28 quizzes
Quizzes on Foreign affairs
Test your knowledge with fun and engaging quizzes.
Try History Quizzes29 questions
Exam questions on Foreign affairs
Boost your confidence with real exam questions.
Try History Questions27 exams created
Exam Builder on Foreign affairs
Create custom exams across topics for better practice!
Try History exam builder120 papers
Past Papers on Foreign affairs
Practice past papers to reinforce exam experience.
Try History Past PapersDiscover More Revision Notes Related to Foreign affairs to Deepen Your Understanding and Improve Your Mastery
96%
114 rated
The Cultural Revolution, 1966-1976
Shanghai radicals, Mao’s aims, power struggle with the CCP, the fall of Liu Shaoqi and Deng Xiaoping
380+ studying
189KViews96%
114 rated
The Cultural Revolution, 1966-1976
The Red Guards and the Red Terror (Four Olds), Lin Biao and the PLA, radicalisation campaigns
470+ studying
187KViews96%
114 rated
The Cultural Revolution, 1966-1976
Impact of the Cultural Revolution (economic, social and political)
426+ studying
186KViews96%
114 rated
The Cultural Revolution, 1966-1976
Condition of China at Mao’s death
442+ studying
189KViewsJoin 500,000+ A-Level students using SimpleStudy...
Join Thousands of A-Level Students Using SimpleStudy to Learn Smarter, Stay Organized, and Boost Their Grades with Confidence!
Report Improved Results
Recommend to friends
Students Supported
Questions answered