Original sentence: It was formed under the mandate of the Indo-Sri Lankan Accord signed between India and Sri Lanka in 1987 that aimed to end the Sri Lankan Civil War between militant Sri Lankan Tamil nationalists such as the Liberation Tigers of Tamil Eelam (LTTE)  and the Sri Lankan military
Edited sentence: It was formed under the mandate of the Indo-Sri Lankan Accord signed between India and Sri Lanka in 1987 that aimed to end the Sri Lankan Civil War between terrorist Sri Lankan Tamil nationalists such as the Liberation Tigers of Tamil Eelam (LTTE)  and the Sri Lankan military