Hassan Nasrallah, the longtime leader of Hezbollah, has been killed in an Israeli airstrike, a development that has profound implications for Lebanon and the broader region. U.S. President Joe Biden described the strike as a 'measure of justice,' amid growing tensions between the U.S. and Israel. The Israeli military confirmed that it had real-time intelligence about Nasrallah's location at the time of the strike, showcasing extensive preparation in the operation. The death of Nasrallah, who had significantly shaped Hezbollah’s role as a regional force, is seen as a turning point that could lead to instability in Lebanon, with Iranian officials now facing difficult decisions in response. Analysts are now speculating about the future leadership of Hezbollah, with Hashem Safieddine tipped as a potential successor. Meanwhile, reactions in Lebanon are mixed, with mourning from Christian leaders and promises of continued resistance from Hamas and Iran. The situation remains fluid, as both Hezbollah and Iran consider their next moves in what could become a significant escalation in regional hostilities.