On February 28, 2026, the United States and Israel launched a massive military operation against Iran — a move decades in the making. But why now? And why at all? This in-depth explainer cuts through the noise and walks you through the full story — from the 1979 Iranian Revolution to nuclear standoffs, proxy wars, and the dramatic strikes that shook the world. Whether you follow international news closely or are just trying to make sense of the headlines, this article breaks it all down in plain, human language. The Middle East will never look the same again — and you deserve to understand why.