In War of the Worlds, Wells himself is the main character who witnesses the Martian attack alongside his fiancée Jane, Thomas Huxley, and Percival Lowell. The British government brings them together with Dr. Moreau and Hawley Griffin, who help develop a strain of cholera to be used against the Martians. Wells travels to the Moon to free the Selenites, who have been enslaved by the Martians, who join forces to end the Martian menace once and for all.
While making use of many themes in The War of the Worlds, The Martian War is diametrically opposite in its basic philosophy. Wells emphasized humanity's complete helplessness in the face of the Martians, making many comparisons to humanity's ruthless treatment of animals, and the Martians' succumbing to Earth microbes as a miraculous deliverance which a desperate humanity did not expect. Conversely, in The Martian War, it is the intended and carefully planned device of a resourceful humanity that wins the day.