The last members of the IPKF, which was estimated to have had a strength of well over 100,000 at its peak, left the country in March 1990 upon the request of President Premadasa. Unstable peace initially held between the government and the LTTE, and peace talks progressed towards providing devolution for Tamils in the north and east of the country. A ceasefire held between LTTE and the government from June 1989 to June 1990, but broke down as LTTE massacred 600 police officers in the Eastern Province.