Thai Army Chief General Apirat Kongsompong and Indonesia's National Army Chief of Staff General Andika Perkasa shake hands after their meeting at Aceh, Indonesia January 14, 2020. The army chiefs of Thailand and Indonesia signed an intelligence sharing agreement on Tuesday, a deal the Thai general said would help limit the movements of insurgent groups operating in the Muslim-majority southern region of Thailand. REUTERS/Panu Wongcha-um

Thai Army Chief General Apirat Kongsompong arrives to meet Indonesia's National Army Chief of Staff General Andika Perkasa at Aceh, Indonesia January 14, 2020. The agreement between Thai Army Chief General Apirat Kongsompong and Indonesia's National Army Chief of Staff General Andika Perkasa focuses on monitoring activities of individuals or groups that represent threats for both countries. REUTERS/Panu Wongcha-um

Thai Army Chief General Apirat Kongsompong and Indonesia's National Army Chief of Staff General Andika Perkasa smile before their meeting at Aceh, Indonesia January 14, 2020. The insurgency in predominantly Buddhist Thailand's provinces of Yala, Pattani and Narathiwat has claimed the lives of nearly 7,000 people since 2004, according to the Deep South Watch monitoring group. REUTERS/Panu Wongcha-um

Thai Army Chief General Apirat Kongsompong and Indonesia's National Army Chief of Staff General Andika Perkasa exchange souvenirs after their meeting at Aceh, Indonesia January 14, 2020. The Thai Army Chief said that Indonesia, particularly Aceh province, have been used in the past by Thai insurgent groups to train as well as to hide and plan operations against Thailand. ANTARA FOTO/Ampelsa

Thai Army Chief General Apirat Kongsompong shakes hands with Malik Mahmud Al Haytar, former Free Aceh Movement leader, before a meeting with Indonesia's National Army Chief of Staff General Andika Perkasa at Aceh, Indonesia January 14, 2020. The army chiefs of Thailand and Indonesia signed an intelligence sharing agreement on Tuesday, a deal the Thai general said would help limit the movements of insurgent groups operating in the Muslim-majority southern region of Thailand. REUTERS/Panu Wongcha-um

Thai Army Chief General Apirat Kongsompong and Indonesia's National Army Chief of Staff General Andika Perkasa smile before their meeting at Aceh, Indonesia January 14, 2020. During his visit to Aceh, Apirat also met with a spiritual leader and a former rebel commander that were involved in the insurgency in Aceh that took place from 1976 to 2005 and said that Aceh peace process is a good example for Thailand going forward because the peace agreement there resulted in Aceh remaining part of Indonesia. ANTARA FOTO/Ampelsa