Hassan Nasrallah was the long-serving Secretary-General of Hezbollah, a powerful Lebanese political and militant organization, until his death in an Israeli airstrike in September 2024. Under his leadership, the group became a significant regional actor with deep ties to Iran and a central role in the ongoing conflict with Israel. Following his assassination, the organization has navigated a period of intense military pressure and leadership transition, including the appointment of Naim Kassem as his successor, while international diplomatic efforts continue to seek a ceasefire between Hezbollah and Israeli forces.