Royal Green Jackets, theˌRoyal ˈGreen ˌJackets, the (also Green Jackets, the) 
a former regiment (=a large division of men) in the British army. In 2007 it joined with several other regiments to form The Rifles.
a former regiment (=a large division of men) in the British army. In 2007 it joined with several other regiments to form The Rifles.