Siege of Angkor (Khmer empire vs Kingdom of Champa)

Cham invasions of Angkor (1170, 1177–1181) Under Suryavarman II (reigned 1113–1150) the Kambuja (Khmer) kingdom united internally and Angkor Wat, the largest Vaishnavites temple in the capital of Yaśōdharapura (Angkor) was built in a period of 37 years. Khmer forces though he did sack Champa capital, Vijaya in 1145 and depose Jaya Indravarman III. The Khmers occupied Vijaya until 1149, when they were driven out by Jaya Harivarman I. Suryavarman II sent a mission to the Chola dynasty of south India and presented a precious stone to the Chola Emperor Kulothunga Chola I in 1114. After Suryavarman II died, Kambuja (Khmer) empire was weakened by succession crisis, while Champa was united by King Jaya Indravarman IV. Finally in 1177 CE the Kambuja capital Yaśōdharapura (Angkor) was raided and looted after victorious naval battle on the Tonlé Sap lake by a Cham fleet under Jaya Indravarman IV king of Champa. During the sack, usurper Tribhuvanadityavarman king of Kambuja (khmer) was