Red Shirt

noun3

1. •
   A member of the UDD (National United Front for Democracy) who supported Prime Minister Thaksin Shinawatra (and subsequent Thaksin-affiliated parties) in the conflict in Thailand after the 2006 coup d'etat.

   • This need became clear with the emergence and conflicts between the Yellow Shirt movement (2005–13) and the Red Shirt movement (2007–present). — 2014
2. •
   (historical) A follower of Giuseppe Garibaldi, an Italian revolutionary in the later nineteenth century.

   • In 1848, both Giuseppe Mazzini's Young Italy movement and Giuseppe Garibaldis Red Shirts had sought a united republican Italy achieved through direct popular action, but they had failed. — 2002
3. •
   (historical) A member of a paramilitary arm of the Democratic party in Mississippi and South Carolina at the end of Reconstruction.