VengeanceDespite decades of treaties, military missions, and covert actions devoted to preventing it, Iran has finally assembled its first nuclear bomb and the U. S., with UN backing, has decided it's time to take direct action. The first move is to blockade the Persian Gulf with a carrier strike group, but Iran strikes back quickly. With Russia's backing, Iran launches a devastating attack, and now the U. S. forces are in a race against the clock to survive