The background of the Um-Yang (Yin-Yang) symbol represents all of the possible dualities in the manner in which we experience reality.
The Dove, with wings spread around the fist represents peace and openness.
The right fist represents the means by which peace, justice, fairness, and balance is kept.
The Chinese character, “Mu”, which is typically referred to as “Martial”, actually means to stop aggression. Aggression of any kind.