Complex sentence: In 1944, popular revolt broke out in neighboring El Salvador, which briefly toppled dictator Maximiliano Hernández Martínez; however, he quickly returned to power, leading to a flood of exiled revolutionaries moving to Guatemala.
Split into simpler sentences: In 1944, popular revolt broke out in neighboring El Salvador, which briefly toppled dictator Maximiliano Hernández Martínez. However, he quickly returned to power, leading to a flood of exiled El Salvadorian revolutionaries moving to Guatemala.