The Gajaba Regiment (GR) was formed when 1st Battalion the Rajarata Rifles and 1st Battalion the Vijayabahu Infantry Regiment were amalgamated in 1983 to counter the threat from the LTTE. It is made up of six regular battalions and five volunteer battalions. Headquartered at Saliyapura Camp, Anuradhapura. It is named after a Sri Lankan famous warrior King Gajabahu the First.