Plaek Phibunsongkhram
Phibunsongkhram Province () was a former province of Thailand that existed between 1941 and 1946. It was created as a result of the annexation of Cambodian territory by Thailand following the 1940-41 Franco-Thai war. This province was named after Plaek Phibunsongkhram, prime minister of Thailand at that time. The province was dissolved and returned to France in 1946.