There is a misunderstanding in Israel and the United States that Israel can militarily rid Lebanon of Hezbollah, or the Party of God. In the first place, Hezbollah is not just a militia or a conventional army, but a social and political movement deeply rooted in its society, with a big constituency within the Lebanese Shia community that comprises about 40 percent of the country's 4 million people. Hezbollah has a welfare system that provides schools, clinics, day-care centers and jobs to hundreds of thousands of poor Shia. Hezbollah provides the Shia community, historically disadvantaged and marginalized in Lebanon, with...