Sentence:  This need became clear with the emergence and conflicts between the Yellow Shirt movement (2005–13) and the <WSD>Red Shirt</WSD> movement (2007–present). 
Meaning of the word marked with <WSD> tags:  A member of the UDD (National United Front for Democracy), supporters of Prime Minister  Shinawatra, (and subsequently Abhisit Vejajiva) in the conflict in Thailand after the 2006 coup d'etat.