By the end of 1987, the militants had fought not only the Sri Lankan security forces but also the Indian Peace Keeping Force.
Below is an instruction that describes a task, paired with an input that provides further context. Write a response that appropriately completes the request. ### Instruction: List the MITRE techniques contained in the text. ### Input: By the end of 1987, the militants had fought not only the Sri Lankan security forces but also the Indian Peace Keeping Force. ### Response: .