Since last week, wave upon wave of Israeli warplanes has hit targets across Iran—testing the limits of what air power alone can achieve in conflict. Conventional wisdom among military thinkers has long been that missiles and bombs,

As the attacks by Iran and Israel continue into their sixth day, here's a look at what we know about the conflict, and if the US will deploy troops.

The Arrow system intercepts long-range missiles at higher altitudes; the David’s Sling system intercepts them at lower altitudes; while the Iron Dome takes out shorter-range rockets, usually fired from Gaza, or the fragments of missiles already intercepted by other defense systems.