The flag for Mwaro, BI-MW, features the national colors of Burundi, represented by a horizontal design with two equal bands. The top band is red, symbolizing the country's struggle for independence and courage. The bottom band is green, representing hope, as well as the agricultural wealth of the nation. In the center of the flag, there is a white saltire, or diagonal cross, which represents peace. Overall, the flag embodies the aspirations of the people of Mwaro and their commitment to unity, resilience, and progress.