Built to survive: Inside Iran’s unbreakable military chain of command

More than 20 top Iranian military and intelligence officials have been killed since the US and Israel launched their joint offensive on February 28. The most recent high-profile loss in Tehran is Ali Larijani, secretary of Iran’s Supreme National Security Council.
Yet despite these significant blows, the Islamic Republic’s military command structure remains intact and operational with Iran continuing its retaliatory strikes across West Asia. How?