The leader of Hezbollah has been killed in an Israeli airstrike in Beirut. Hassan Nasrallah led the group for more than 30 years, building it into a powerful political force within Lebanon and the most heavily armed non-state militia in the world. Israeli Prime Minister Benjamin Netanyahu reportedly ordered the killing from his hotel room in New York, before his speech at the United Nations general assembly. Joe Biden has called the killing a “measure of justice”. But Lebanon is entering three days of mourning, at a time when more than half a million people are displaced there and airstrikes continue. Today, Middle East correspondent for The Economist Gregg Carlstrom on Hassan Nasrallah’s legacy and what his death means for Lebanon, and for Israel. Socials: Stay in touch with us on Twitter and Instagram Guest: Middle East correspondent for The Economist Gregg Carlstrom