Iran issues its highest military alert level 'Code 100' ahead of possible US attack

Iran has issued the 'Code 100', its highest military alert level, stated reports. It is the highest level of preparedness alert which is reserved for an imminent attack and is applied across Iran's IRGC, the Army and security forces. This comes amid heightened possibilities of a retaliation from US after Iran-backed Houthis attacked Saudi Arabia's capital Riyadh.