Inner Cambodia

Inner Cambodia was a historical region in present-day Cambodia that was under the direct rule of Siam (Thailand) between 1794 and 1907. It covered much of north-western Cambodia, and included, most significantly, the cities of Phra Tabong, Siemmarat and Si Sophon (now known by the Khmer names Battambang, Siem Reap, and Serei Saophoan). The region was ruled by a Bangkok-appointed governor who held the title Aphaiphubet, and was incorporated under the monthon administrative system in 1891, becoming known as Monthon Burapha in 1900. The territory remained under Thai control until 1907, when it was ceded to France and incorporated into French Indochina. The region was again briefly annexed by Thailand during the Second World War from 1941 to 1946.