Anton Beresch was the first Dawn Brigade separatist agent to attack Los Angeles during Day 5. He was the commander and leader of the team (working with his lieutenant, Vlad, Ibrim, Ishmael, Ivan, Achmed and others) that Vladimir Bierko assembled to take over and hold hostages within Ontario Airport. Coordinating with James Nathanson, Beresch's plot was to use the hostages to demand the dismantlement of the anti-terrorism treaty.