Roy Thomas' epic run continues with the origin of the Black Panther, the debut of the Lady Liberators, the return of the Squadron Sinister and the all-time classic Kree/Skrull War! Caught in a cosmic crossfire, Earth has become the staging ground for a conflict of star-spanning proportions! Two eter...

Roy Thomas' epic run continues with the origin of the Black Panther, the debut of the Lady Liberators, the return of the Squadron Sinister and the all-time classic Kree/Skrull War! Caught in a cosmic crossfire, Earth has become the staging ground for a conflict of star-spanning proportions! Two eternal intergalactic enemies - the merciless Kree and the shape-shifting Skrulls - have gone to war, and our planet is situated on the front lines! Can Earth's Mightiest Heroes bring about an end to the fighting before humanity becomes a casualty of war? And what good are even a dozen super-powered champions against the vast military machines of two of the greatest empires in the cosmos? Collecting AVENGERS (1963) #77-97 and INCREDIBLE HULK (1968) #140.