Tet Offensive in the context of "1983 Beirut barracks bombing"

In civil and military jurisprudence, summary execution is the putting to death of a person accused of a crime without the benefit of a free and fair trial. The term results from the legal concept of summary justice to punish a summary offense, as in the case of a drumhead court-martial, but the term usually denotes the summary execution of a sentence of death. Under international law, it is defined as a combatant's refusal to accept an opponent's lawful surrender and the combatant's provision of no quarter, by killing the surrendering opponents.

Summary executions have been practiced by governments and paramilitary organizations during both peacetime and war, and is usually associated with war crimes and political persecution.

The Viet Cong (VC) was an epithet and umbrella term to refer to the communist-driven armed movement and united front organization in South Vietnam. It was formally organized as and led by the National Liberation Front of South Vietnam, and conducted military operations under the name of the Liberation Army of South Vietnam (LASV). The movement fought under the direction of North Vietnam against the South Vietnamese and United States governments during the Vietnam War. The organization had both guerrilla and regular army units, as well as a network of cadres who organized and mobilized peasants in the territory the VC controlled. During the war, communist fighters and some anti-war activists claimed that the VC was an insurgency indigenous to the South that represented the legitimate rights of people in South Vietnam, while the U.S. and South Vietnamese governments portrayed the group as a tool of North Vietnam. It was later conceded by the modern Vietnamese communist leadership that the movement was actually under the North Vietnamese political and military leadership, aiming to unify Vietnam under a single banner.

North Vietnam established the National Liberation Front (NLF) on December 20, 1960, at Tân Lập village in Tây Ninh Province to foment insurgency in the South. Many of the VC's core members were volunteer "regroupees", southern Viet Minh who had resettled in the North after the Geneva Accord (1954). Hanoi gave the regroupees military training and sent them back to the South along the Ho Chi Minh trail in the late 1950s and early 1960s. The VC called for the unification of Vietnam and the overthrow of the American-backed South Vietnamese government. The VC's best-known action was the Tet Offensive, an assault on more than 100 South Vietnamese urban centers in 1968, including an attack on the U.S. embassy in Saigon. The offensive riveted the attention of the world's media for weeks, but also overextended the VC. Later communist offensives were conducted predominantly by the North Vietnamese. The organization officially merged with the Fatherland Front of Vietnam on February 4, 1977, after North and South Vietnam were officially unified under a communist government.

The protests of 1968 comprised a worldwide escalation of social conflicts, which were predominantly characterized by the rise of left-wing politics, anti-war sentiment, civil rights urgency, youth counterculture within the Silent and baby boomer generations, and popular rebellions against military states and bureaucracies.

In the United States, the protests marked a turning point for the civil rights movement, which produced revolutionary movements like the Black Panther Party. In reaction to the Tet Offensive, protests also sparked a broad movement in opposition to the Vietnam War all over the United States as well as in London, Paris, Berlin and Rome. Mass movements grew in the United States but also elsewhere. In most Western European countries, the protest movement was dominated by students.

Võ Nguyên Giáp (chữ Hán: 武元甲, Vietnamese pronunciation: [vɔ̌ˀ ŋʷīən jǎːp]; 25 August 1911 – 4 October 2013) was a Vietnamese general, communist revolutionary and politician. Highly regarded as a military strategist, Giáp led Vietnamese communist military forces to victory in the decades long Indochina wars. Giáp was the military commander of the Việt Minh and the People's Army from 1941 to 1972, minister of defense of the Democratic Republic of Vietnam (North Vietnam) and the Socialist Republic of Vietnam in 1946–1947 and from 1948 to 1980, and deputy prime minister from 1955 to 1991. He was a member of the Politburo of the Communist Party of Vietnam.

Born in Quảng Bình province to an affluent peasant family, Giáp began participating in anti-colonial political activity in 1925. Sources conflict as to whether he joined the Indochinese Communist Party in 1930, or not until 1940. Giáp rose to prominence during World War II as the military leader of the Việt Minh resistance against the Japanese occupation, and after the war led anti-colonial forces in the First Indochina War against the French. He won a decisive victory at the 1954 Battle of Dien Bien Phu, which ended the war. In the Vietnam War, Giáp led the PAVN against South Vietnam and the United States. Giáp was commander of the army during the 1968 Tet Offensive and 1972 Easter Offensive, after which he was succeeded by Văn Tiến Dũng, but remained defense minister through the U.S. withdrawal and final victory against South Vietnam in 1975. Giáp oversaw his final campaigns in the successful Vietnamese invasion of Cambodia in 1978 and the 1979 Sino-Vietnamese War. He resigned as defense minister in 1980 and left the Politburo in 1982. Giáp remained on the Central Committee and as deputy prime minister until 1991, and died in 2013 at age 102.

Nguyễn Ngọc Loan (Vietnamese: [ŋʷǐənˀ ŋâwkp lʷāːn]; 11 December 1930 – 14 July 1998) was a South Vietnamese general and chief of the South Vietnamese National Police.

Loan gained international attention when he summarily executed a handcuffed prisoner of war named Nguyễn Văn Lém on February 1, 1968, in Saigon, Vietnam during the Tet Offensive. Nguyễn Văn Lém was a Viet Cong (VC) member. South Vietnamese Vice President Nguyễn Cao Kỳ stated that Lém was "a very high ranking" political official, but had not been a member of the Viet Cong military. The event was witnessed and recorded by Võ Sửu, a cameraman for NBC, and Eddie Adams, an Associated Press photographer. The photo and film became two famous images in contemporary American journalism.

Saigon Execution is a 1968 photograph by Associated Press photojournalist Eddie Adams, taken during the Tet Offensive of the Vietnam War. It depicts South Vietnamese police chief Nguyễn Ngọc Loan shooting Viet Cong captain Nguyễn Văn Lém near the Ấn Quang Pagoda in Saigon. The photograph was published extensively by American news media the next day, and would later win Adams the 1969 Pulitzer Prize for Spot News Photography and the 1968 World Press Photo of the Year.

USS Pueblo (AGER-2) is a Banner-class technical research ship, placed into service during World War II, then converted to a spy ship in 1967 by the United States Navy. She gathered intelligence and oceanographic information, monitoring electronic and radio signals from North Korea. On 23 January 1968, the ship was attacked and captured by a North Korean vessel, in what became known as the "Pueblo incident".

The seizure of the U.S. Navy ship and her 83 crew members, one of whom was killed in the attack, came less than a week after President Lyndon B. Johnson's State of the Union address to the United States Congress, a week before the start of the Tet Offensive in South Vietnam during the Vietnam War and three days after 31 men of North Korea's KPA Unit 124 had crossed the Korean Demilitarized Zone (DMZ) and killed 26 South Koreans and 4 Americans in an attempt to attack the South Korean Blue House (executive mansion) in the capital Seoul. The taking of Pueblo and the abuse and torture of her crew during the next eleven months became a major Cold War incident, raising tensions between western and eastern powers.