FOR DECADES Israel’s arms industry was primarily known for one piece of kit. The Uzi, a compact and rugged submachinegun much beloved by action-movie heroes, embodied Israel’s national brand as a tiny, ingenious and, when necessary, deadly little country. Israel has changed since, but its arms industry still has branding power. Nowadays, though, its most ubiquitous product is not a gun but its missile-defence system widely known as Iron Dome (though this is the name of just the lowest of its layered defences).