Force Three is a group of eco-terrorists that appear in the novel Ark Angel, and their name refers to Earth being the third planet from the Sun. They will kill anyone who gets in their way of protecting the Earth. However, Force Three was created by Nikolei Drevin to act as a scapegoat for his plan to destroy the Pentagon in Washington. The group is made up of five assassins, four of which are unnamed; Alex Rider calls them Combat Jacket, Silver Tooth, Steel Watch and Spectacles after their distinguishing features. The fifth assassin is Kaspar, the leader of Force Three.