During the Russian invasion of Ukraine, Ukrainian ground forces started to use reflective yellow armbands, similar to yellow reflective belts used in the U.S. Army.[2] Later they switched the armband color to blue (the other color of the Ukrainian flag) to prevent Russians from infiltrating their ranks.[3]
The red color was chosen by Russian forces during the invasion and the Ukrainian Interior Ministry urged citizens to pay special attention to people with red on their clothing and report such people to the police.[4]