beirut head iran-backed iraqi shi ite militia visit lebanon border israel accompany hezbollah fighters video release saturday show show iranian influence lebanon prime minister call illegal qais al-khazali leader iraqi paramilitary group asaib ahl al-haq declare readiness stand together lebanese people palestinian cause video footage widely circulate social media appearance frontier likely see middle east example tehran demonstrate reach could add tension lebanon catch regional tussle iran saudi arabia lebanese prime minister saad al-hariri issue statement say border visit paramilitary uniform violate lebanese law instruct security chiefs prevent person carry activities military nature country territory prevent illegal action bar khazali enter country say lebanon still recover crisis trigger month ago hariri announce resignation visit saudi arabia accuse iran hezbollah meddle regional conflict violation lebanon policy non-intervention hariri return lebanon two weeks late withdraw resignation last week government restate non-intervention policy hezbollah heavily arm shi ite group fight openly syria ally iran serve power-sharing government hariri sunni muslim politician deep business political tie saudi arabia commander alliance hezbollah iran russia speak reuters condition anonymity say al-khazali accompany officer asaib ahl al-haq visit entire border occupy palestine commander say visit take place video unidentified commander presumably hezbollah gesture toward military outposts northern israel explain khazali hit hezbollah missiles previous confrontations group israel border separate southern lebanon occupy palestine brothers hezbollah announce full preparedness stand unite ... israeli occupier khazali say video hezbollah leader sayyed hassan nasrallah say june future war wag israel syria lebanon could draw fighters countries include iran iraq iran revolutionary guard establish hezbollah lebanon 1982 mobilize shi ite militias around region recent years fight islamic state iraq help president bashar al-assad war syria lebanon 's hariri denounce iraqi shi'ite paramilitary 's visit border