The
Government of India took direct involvement in ending the Sri Lankan Civil War through mediation, peacekeeping, and political agreements from 1987 to 1990. India's hitherto indirect involvement changed in June 1987 with its
Operation Poomalai in response to the Sri Lankan Government's
Operation Liberation, which led to the signing of the
Indo-Sri Lanka Accord on 29 July 1987. Under the accord, the Sri Lankan Government agreed to a mechanism for the devolution of power to the provinces and confined its troops to barracks in the Northern and Eastern provinces. The Indian Government agreed to deploy peacekeepers to oversee the disarmament of the Tamil rebels. The
Indian Peace Keeping Force (IPKF) began arriving in Sri Lanka in July with the mandate to "guarantee and enforce the cessation of hostilities", while the Sri Lankan military withdrew to their bases or were redeployed to the south of the island to deal with the
JVP insurrection. In keeping with the Indo-Sri Lanka Accord, the Sri Lankan Government had the
Thirteenth Amendment to the Constitution of Sri Lanka and the Provincial Councils Act No 42 of 1987 passed in Parliament on 14 November 1987, establishing a new system of
provincial government with the aim of devolution of power to the provinces. Initially welcomed by the Tamils, the IPKF soon clashed with the LTTE after the group refused to disarm. From late 1987 onwards, heavy fighting ensued with India deploying over 70,000 troops at its peak. On 13 July 1989, Tamil Nationalist leaders
A. Amirthalingam and
V. Yogeswaran were assassinated in Colombo. Although casualties among the IPKF mounted, and calls for the withdrawal of the IPKF from both sides of the Sri Lankan conflict grew, Indian prime minister
Rajiv Gandhi refused to remove the IPKF from Sri Lanka until his defeat in Indian parliamentary elections in December 1989. The new prime minister
V. P. Singh ordered the withdrawal of the IPKF, and their last ship left Sri Lanka on 24 March 1990. In June 1990, the LTTE and Sri Lankan government resumed hostilities, marking the beginning of
Eelam War II. == Colombo (1989–1990) ==