Iron Man: Armor Wars
Tony Stark is an inventive genius dedicated to creating technology for the betterment of humanity. And Stark's greatest creation is a modern-day miracle: the invincible Iron Man armor! But when Stark discovers that the same top-secret tech he used to create Iron Man has fallen into the hands of several deadly super villains, he feels responsible for the harm they've done. In the face of objections from his government, friends, colleagues and fellow super heroes, Stark swears to use the power of Iron Man to bring the evil to an end - and to take back what's his. Beetle, Stilt-Man, Controller, Stingray, Firepower, the Mandroids and the Guardsmen don't know it yet, but they've got a problem. The world's most powerful force for good isn't playing by the rules anymore. And he's coming for them.
Collecting IRON MAN (1968) #225-232.