How can one persons belligerence turn into a real problem for an entire group?

One person's belligerence can create a toxic atmosphere within a group, leading to increased tension and conflict among members. This behavior can undermine collaboration and trust, causing others to feel uncomfortable or defensive. Additionally, the belligerent individual may distract from the group's goals, shifting focus to interpersonal disputes rather than productive work. Ultimately, this can result in decreased morale and effectiveness, jeopardizing the group's overall success.