With the commencement of the 4th phase of the Sri Lankan Civil War (often cited as 4th Eelam war), the Commandos and Special Forces were tasked to conduct deep operations to disrupt and deny the freedom of action of LTTE. Commandos were able to disorientate the LTTE Leadership by conducting Ambushes and Raids by inflicting attrition on LTTE, thus forcing them to deploy more troops for their rear area security. Their operations shaped up the battlefield creating a favorable situation to launch a historical major offensive to liberate Eastern Province from LTTE. Most of the operations conducted by the Commando Regiment are Covert operations. A successful small group raid was done in 1990 In Mallakam in the Jaffna peninsula. By Delta Patrol of 1st Commando Regiment. Another successful raid was done in Welioya Thannimuruppu Kulam area in 1993 by a small team of Bravo Group of 2nd Commando Regiment. LTTE's Colonel Amudan alias Thambi (tag no 0003) was also killed in 1994 creating a great impact on the chain of command of the LTTE.