Lebanon's Parliament Speaker Nabih Berri, long one of Hezbollah's most consequential political patrons, has publicly condemned the U.S.-brokered agreement between Beirut and Tel Aviv, arguing that the deal risks inflaming domestic divisions and may never be carried out. His denunciation underscores the fragile, contested ground on which any ceasefire architecture in southern Lebanon must stand - and raises serious doubts about whether American diplomatic efforts can hold without bringing Iran to the table.