Iran’s options following Israel’s assassination of Hezbollah chief Hassan Nasrallah range from “unattractive” to unpalatable”, International Crisis Group Iran research programme Director Ali Vaez told FRANCE 24. “Hezbollah was always supposed to be the shield to protect Iran against Israel and the United States, but now Iran is in a situation if it wants to protect whatever remains of Hezbollah, it risks ... ending up in a war against much more conventionally powerful militaries like Israel and the United States,” Vaez said.