Most policymakers in the United States and Israel have it wrong. Hezbollah isn't a simple terrorist organization - nor is it likely to disappear soon. Following Israel's war against Hezbollah in the summer of 2006, the Shi'i group - which combines the functions of a militia, a social service and public works provider, and a political party - is more popular than ever in the Middle East while retaining its strong base of support in Lebanon. And Hezbollah didn't merely confront Israel and withstand its military onslaught. Hezbollah's postwar reconstruction efforts were judged better than the U.S. government's response to Hurricane Katrina - not by al-Jazeera, but by an American TV journalist. In "Hezbollah", one of the world's leading experts on Hezbollah has written the essential guide to understanding the complexities and paradoxes of a group that remains entrenched at the heart of Middle East politics. With unmatched clarity and authority, Augustus Richard Norton tells how Hezbollah developed, how it has evolved, and what direction it might take in the future. Far from being a one-dimensional terrorist group, Norton explains, Hezbollah is a "janus-faced" organization in the middle of an incomplete metamorphosis from extremism to mundane politics, an evolution whose outcome is far from certain. Beginning as a terrorist cat's-paw of Iran, Hezbollah has since transformed itself into an impressive political party with an admiring Lebanese constituency, but it has also insisted on maintaining the potent militia that forced Israel to withdraw from Lebanon in 2000 after almost two decades of occupation. The most accessible, informed, and balanced analysis of the group yet written, "Hezbollah" is essential reading for anyone who wants to understand the Middle East.