Nasrallah became the leader of Hezbollah after the Israelis assassinated the previous leader, Musawi, in 1992. During Nasrallah's leadership, Hezbollah acquired rockets with a longer range, which allowed them to strike at northern Israel despite the Israeli occupation of southern Lebanon. In 1993 Israel carried out Operation Accountability. Much Lebanese infrastructure was destroyed during the operation, which Israel claimed was successful. An agreement was eventually reached whereby, Israel ended its attacks in Lebanon and Hezbollah agreed to stop attacks on northern Israel.