"World War Hulk" is a comic book crossover storyline that ran through a self-titled limited series and various titles published by Marvel Comics in 2007, featuring the Hulk.The series consists of five main issues titled World War Hulk, with Greg Pak as writer and John Romita, Jr. as penciller, and three other limited series: World War Hulk: Front Line, World War Hulk: Gamma Corps, and World War Hulk: X-Men.