Answer
Yingluck Shinawatra was preceded as Prime Minister by Abhisit Vejjajiva. Vejjajiva's tenure was marked by political turmoil, including a military crackdown on anti-government protesters in 2010 that resulted in numerous casualties. His government was eventually dissolved following a series of legal challenges and political maneuvers. Shinawatra, a member of the Pheu Thai Party, won a landslide victory in the subsequent general election, becoming Thailand's first female prime minister.