Deng era

See also: Sino-Vietnamese War
Soon after Deng became the Paramount Leader of China, the Vietnamese invaded Cambodia and ended the genocide by defeating the Khmer Rouge in January 1979. The People's Republic of Kampuchea was then established. In order to counter the power of Soviet Union and Vietnam in Southeast Asia, China officially condemned the Vietnamese invasion and continued its material support to Khmer Rouge. In early 1979, China launched an invasion of Vietnam to retaliate against Vietnam's invasion of Cambodia.

Deng was convinced by a conversation with Singapore's prime minister Lee Kuan Yew to limit the scale and duration of the war. Following the one-month war, Singapore attempted to serve as a mediator between Vietnam and China on the Cambodian issue.

Salient: (pronounced SAY-lee-uhnt) A part of a defensive line of works or a fortification that juts out from the main line towards the enemy. Salients can be very vulnerable to because they may be attacked from multiple sides.

Abolitionist: Someone who wishes to abolish or get rid of slavery.

Juggernaut: (pronounced juhg-er-nawt) An overwhelming, advancing force that crushes or seems to crush everything in its path.

Surrender: To admit defeat and give up in the face of overwhelming odds. Most defeated generals were able to negotiate surrender terms. These might include items like parole instead of prison for the soldiers or letting officers keep their sidearms.

Corps: (pronounced kohr or korz) A very large group of soldiers led by (Union) a major general or (Confederate) a lieutenant general and designated by Roman numerals (such as XI Corps). Confederate corps were often called by the name of their commanding general (as in Jackson's Corps). 1 company = 50 to 100 men, 10 companies = 1 regiment, about 4 regiments = 1 brigade, 2 to 5 brigades = 1 division, 2 or more divisions = 1 corps, 1 or more corps = 1 army.