In 1714, King Ang Tham or Thommo Reachea of Cambodia was driven off by Kaev Hua, who was supported by the Vietnamese Nguyen Lord. Ang Tham took refuge in Ayutthaya where King Thaisa granted him a place to reside. Three years later, in 1717, the Siamese king sent armies and navy to reclaim Cambodia for Ang Tham, leading to the Siamese–Vietnamese War (1717). Two large Siamese forces invade Cambodia in an effort to help Prea Srey Thomea regain the throne. One Siamese army is badly beaten by the Cambodians and their Vietnamese allies at the Battle of Bantea Meas. The Second Siamese army captures the Cambodian capital of Udong where the Vietnamese supported Cambodian king switches allegiance to Siam. Vietnam loses the suzerainty of Cambodia but annexes several border provinces of Cambodia.