Complex sentence: During the Japanese occupation, Kelantan came again under control of Axis-aligned Thailand as one of the "Sirat Malai" states, but after the defeat of Japan in August 1945, Kelantan reverted to British rule.
Split into simpler sentences: During the Japanese occupation, Kelantan came again under control of then Axis-aligned Thailand as one of the "Sirat Malai" states. After the defeat of Japan in August 1945, Kelantan reverted to British rule.