that they may never be combined and used again. Civil War Although the Illuminati never met or operated as a group during Civil War, their actions in the conflict reflect their reactions at the last meeting. Iron Man and Mr. Fantastic became two of the leading members of the pro-registration side, and worked closely with the United States government and S.H.I.E.L.D. Doctor Strange stayed out of the conflict, meditating and fasting, though he later admits, after joining the New Avengers and finding new love, that he regrets his lack of involvement. Afterward, he would join the New Avengers, who continue to operate underground without registering. Black Bolt and the Inhumans stayed out of the conflict, but began their own Cold War with the United States. Namor was involved only so far as it served his interests. This included avenging the death of his cousin in the Stamford tragedy, and coming to the aid of his friend Captain America's forces in the final battle. Professor X was not on Earth during the conflict. World War Hulk During Civil War, Reed is contacted by Amadeus Cho, who informs him that Hulk did not land on the intended planet. When the Hulk ultimately returns to Earth, he seeks revenge on the Illuminati as Namor had warned. He became King of the planet he landed on, before the ship self-destructs and destroyed millions of the inhabitants, along with the Hulk's wife and unborn child. His first act is to attack and defeat Black Bolt at the Inhuman settlement on the moon. Hulk arrives on Earth and sends a transmission to hand over Doctor Strange, Iron Man, and Mister Fantastic to him while giving the citizens of New York City time to evacuate. After providing New York with a twenty-four-hour time limit to hand the other three Illuminati over to him, the Hulk approaches Professor X at his mansion to determine whether he would have supported the Illuminati plan had he been present. After scanning Hulk's mind, Professor X confirms that he would have agreed with the plan, but only until a method could be found to prevent the Hulk endangering others. He battles the X-Men. After learning of the mutant population's recent severe losses as a result of "M-Day", the Hulk decides that the X-Men have suffered enough and departs. Having then taken over Manhattan Island, the Hulk is attacked by Iron Man in