This research examines the establishment and expansion of Hezbollah. It uses a policy perspective in explaining the growth of this organization. Moreover, it focuses on Israel’s disproportionate use of force in Lebanon as a major cause behind the very existence of Hezbollah. The analysis of Israeli policy will be done by examining three separate conflicts as case studies. These events are: the 1982 (Peace for Galilee) invasion of Lebanon that helped to create Hezbollah, the 1996 (Operation Grapes of Wrath) Hezbollah-Israeli conflict which served to bolster Hezbollah in Lebanon, and finally the 2006 Hezbollah-Israeli war which solidified Hezbollah as a military force in the region. The first part of the study analyzes the 1982 Israeli invasion of Lebanon to dismantle PLO bases and the resulting vacuum filled by Hezbollah. In an effort to eliminate Hezbollah, Israel again invaded Lebanon in 1996 allowing Hezbollah to expand its power based in Lebanon by providing a number of services including healthcare, financial services, and construction among others. In 2006, Israel again invaded Lebanon resulting in an increase in weapons shipments and funding to Hezbollah from Syria, Iran and a number of other countries, further increasing danger to Israel. These invasions have served to bolster Hezbollah in Lebanon. The purpose of this thesis is to examine the repercussions of Israeli military invasions in Lebanon