Sentence:  The mass demonstrations led by the <WSD>Yellow Shirts</WSD> since 2005 sought to expel Thaksin, whom they regard as highly corrupt, manipulative, and authoritarian – a major threat to the country's democracy, monarchy, and national security as a whole. 
Meaning of the word marked with <WSD> tags:  A member of the Popular Alliance for Democracy (PAD), the organization responsible for the coup d'etat in Thailand in 2006.