What is Iran’s Castle Breaker missile, used against US bases?

Iran’s Kheibar Shekan missile, which means Castle Breaker in Persian, has emerged as one of the most talked-about weapons in the US-Israel war on Iran.

The medium-range ballistic missile has been used by Iran in strikes on US military targets and infrastructure in the Middle East this week, as Tehran aims to demonstrate that its missile arsenal remains well-stocked following six months of interm...