Several military sources have reported that a Joint Readiness Training Center at Fort Polk, Louisiana, has introduced red armbands to signify unvaccinated troops and green armbands to signify vaccinated troops.

National Guard troops are also wearing blue bracelets to signify that they have been vaccinated.

Beckernews.com reports: Troops "in the box" at Fort Polk who do not desire to comply with armbands due to concerns that it unduly coerces them to be vaccinated prior to FDA approval and a top-level military order are left with little recourse at this time. They are subject to discipline under the UCMJ if they refuse to obey direct orders.