Complex sentence: By April 1948 the junta returned Field Marshal Luang Phibulsongkram, the wartime Prime Minister, to his previous office; however, he was caught in a power struggle between his subordinates.
Split into simpler sentences: By April 1948 the junta returned Field Marshal Luang Phibulsongkram, the wartime prime minister, to his previous office. He, however, was caught in a power struggle between his subordinates.