ˈcolor ˌguard noun [countable] American English a group of people who carry flags in an official ceremony
[TahlilGaran] Dictionary of Contemporary English ▲
color guard n. A military guard of honor for the flag of a country; also: a guard of honor to carry and protect a flag or banner (as of a club).
There were four Marines in the color guard in the parade. Bob was picked to be a color guard and to carry the banner of the drum corps at the football game. [TahlilGaran] English Idioms Dictionary ▲