On July 10, 1991, the LTTE launched a massive attack at Elephant Pass. The battle was, up until that time, the most violent and bloody confrontation that ever took place between the LTTE and the Sri Lankan Army. The LTTE had previously surrounded the base and blocked off routes north and south so no reinforcements could come in. Also, at the beginning of July the LTTE moved anti-aircraft guns close to the base so no helicopters could bring in supplies. Thus the 800 troops of the 6th Battalion of the Sri Lanka Sinha Regiment stationed at the base were trapped, yet led by Maj. Sanath Karunaratne they fought on. The assault came from the south. On the first day the LTTE captured a few bunkers held by Sri Lankan troops. During the attack the LTTE used steel-plated earth-moving vehicles and tractors. They fired hundreds of mortar rounds on the positions of the Sri Lankan forces. The next day the second-in-command of the base was killed in a mortar attack. Helicopters were not able to land at the base because of heavy fire. Eventually the Rest House camp in the southern sector of the base fell into the hands of the LTTE. Sustaining heavy losses, the Sri Lankan troops fell back to the rearward positions. As dusk fell the LTTE launched several attacks with hundreds of fighters and surrounded the army's fortifications. The defending troops were shocked by the sight of a hitherto unknown bulldozer covered with armored plates that looked like a huge tank. It was equipped with a machine gunon top of it and contained a large supply of arms and ammunition inside.
Operation Balavegaya
Fierce fighting continued for four days before reinforcements were able to be sent. A force of 10,000 troops was dispatched to the defenders' aid. An amphibious landing was conducted at Vettilaikerni, just 12 kilometers east of the base. However, much resistance was encountered from the Tigers, and it took the relief force 18 days to reach the Elephant Pass base. With heavy losses in men and material, the troops finally reached the Elephant Pass base on the evening of August 3. Fighting continued until August 9, when the LTTE made a tactical withdrawal. They suffered 573 fighters killed, according to LTTE sources, but according to the Sri Lankan army around 950 were killed. The army gave the number of its soldiers killed at 202, but LTTE claimed that more than 400 died. Estimates in later years put the number of dead on both sides at about 2,000. The president called the fight the "Mother of All Battles". However, 8-1/2 years later the base was attacked again and that time the Tigers overran and took it. It was another 8-1/2 years before the Sri Lankan Army took the base back, in the in its "Northern Offensive", which ended in May 2009 and resulted in the complete destruction of the LTTE.
