Operation Liberation also known as the Vadamarachchi Operation was the military offensive carried out by the Sri Lankan Armed Forces in May and June 1987 to recapture the territory of Vadamarachchi in the Jaffna peninsula from the LTTE (Tamil Tigers). At the time it was the largest combined services operation undertaken by the armed forces deploying multiple brigade size formation, becoming the first conventional warfare engagement on Sri Lankan soil after the end of British colonial rule. The operation involved nearly 4,000 troops, supported by ground-attack aircraft, helicopter gunships and naval gun boats. The offensive achieved its primary objective, however operations were suspended when the Indian government dropped food supplies over Jaffna in Operation Poomalai on June 4, 1987, whi