Champa and the emerging Khmer Empire had waged war on each other for three centuries, from the 10th to 13th century. The Khmer first invaded Champa in Kauthara (Khanh Hoa) in 950. In 1080, they attacked Vijaya and central Champa. The Cham under Harivarman IV launched counteroffensive against the Cambodian and plundered temples across east of the Mekong river. Tensions escalated during the next century. Suryavarman II of Khmer Empire invaded Champa in 1145 and 1149 after Cham ruler Indravarman refused to join with the Khmer campaign against the Vietnamese. It was believed that Suryavarman II died during the war against Champa in 1150. In 1177 Cham king Jaya Indravarman IV led a surprised attacked on Khmer capital Yasodharapura (Angkor) and defeated them at the Battle of Tonlé Sap.
Champa and the emerging Khmer Empire had waged war on each other for three centuries, from the 10th to 13th century The Khmer first invaded Champa in Kauthara (Khanh Hoa) in 950. In 1080, they attacked Vijaya and central Champa. The Cham under Harivarman IV launched counteroffensive against the Cambodian and plundered temples across east of the Mekong river. Tensions escalated during the next century. Suryavarman II of Khmer Empir.e invaded Champa in 1145 and 1149 after Cham ruler Indravarman refused to join with the Khmer campaign against the Vietnamese. It was believed that Suryavarman II died during the war against Champa in 1150. In 1177 Cham king Jaya Indravarman IV led a surprised attacked on Khmer capital Yasodharapura (Angkor) and defeated them at the Battle of Tonlé Sap.