Sri Lankan Civil War: Sri Lankan Army soldiers kill 107–150 civilians in Mannar.

The Sri Lankan civil war was fought in Sri Lanka from 1983 to 2009. Beginning on 23 July 1983, it was an intermittent insurgency against the government by the Liberation Tigers of Tamil Eelam led by Velupillai Prabhakaran. The LTTE fought to create an independent Tamil state called Tamil Eelam in the north-east of the island, due to the continuous discrimination and violent persecution against Sri Lankan Tamils by the Sinhalese-dominated Sri Lanka government.

The Sri Lanka Army is the oldest and largest of the Sri Lanka Armed Forces. The army was officially established as the Ceylon Army in 1949, though the army traces its roots back in 1881 when Ceylon Light Infantry Volunteers was created; the army was renamed as the 'Sri Lanka Army' when Sri Lanka became a republic in 1972. In 2024, the Army had approximately 150,000 personnel.

The 1984 Mannar massacre was the killing of 200+ minority Sri Lankan Tamils civilians by Sri Lankan Army soldiers in the town of Mannar, north-western Sri Lanka, on December 4, 1984. The attack was triggered when three Army jeeps hit a land mine, killing one soldier. In retaliation, landmarks such as the Central hospital, the post office, a Roman Catholic convent as well as villagers working in rice paddy fields and bus passengers were attacked. Villages around Mannar town such as Murunkan and Parappankadal were also attacked. Immediately after the incident, the then Sri Lankan President J. R. Jayawardene appointed a Presidential commission of inquiry. A local Roman Catholic priest, Mary Bastian who was a member of the Presidential commission was later killed in January 1985. A Methodist minister George Jeyarajasingham, who was a witness to the incident, was also killed in December 1984.

Mannar is the main town of Mannar District, Northern Province, Sri Lanka. It is governed by an Urban Council. The town is located on Mannar Island overlooking the Gulf of Mannar and is home to the historic Ketheeswaram temple. In the Tamil language, Mannar means the raised place [of sand] which is thought to have come from the geology of Mannar Island which was formed by the accumulation of sand.