Iran has threatened to retaliate after four people were killed in Israeli drone strikes in southern Lebanon on Tuesday, according to the National News Agency of Lebanon. The threats emerge shortly after the United States and Iran reached an agreement intended to end ongoing conflict, scheduled for signing in Switzerland on Friday. Iran has consistently demanded that any ceasefire agreement include Lebanon, which has experienced repeated Israeli attacks since March. The strikes heighten tensions as negotiations for a broader regional de-escalation proceed. The timing of the Iranian response suggests a direct link between the attacks and the pending agreement. The potential for escalation remains a significant concern for regional stability. The agreement’s success hinges on addressing Iran’s concerns regarding Lebanon’s security.