Iran has highlighted its Khorramshahr-4 missile, described as its largest and most formidable, amidst internal unrest and external pressures. The missile is central to Tehran's deterrence strategy. This comes as Iran faces internal turmoil, with over 500 reported deaths, and has issued threats to target US and Israeli bases if the US intervenes on behalf of protesters. Iranian leaders are signaling a broader regional response to any potential US military action.