Original sentence: Between 1983 and 2009 Sri Lankan Tamil militant groups led by the Liberation Tigers of Tamil Eelam (LTTE) fought against the Sri Lankan state to create an independent state of Tamil Eelam in the north and east of Sri Lanka
Edited sentence: Between 1983 and 2009 Sri Lankan Tamil militant groups led by the Liberation Tigers of Tamil Eelam (LTTE/ terrosrist group)fought against the Sri Lankan state to create an independent state of Tamil Eelam in the north and east of Sri Lanka.It cost the life's of  many  civilians by the hands of suicide bombers and attacks led by the LTTE targeting the civilians