Across the Middle East it's expected that Israel will launch an attack on Iran soon, after the Iranian regime fired a volley of hundreds of missiles towards Israel on Tuesday. Meanwhile Israel continues to confront Hezbollah in Lebanon and Hamas in Gaza and the West Bank. An airstrike in the West Bank city of Tulkarm killed 18 people, including a Hamas commander. In this special episode of The World Tonight we're joined by the BBC's Security Correspondent Frank Gardner, as well as other guests and correspondents, to explain these complex and fast-moving events.