Since 13 June, the long-running stand-off between Iran and Israel has escalated to sustained conventional conflict, with a sustained Israeli air campaign against targets within Iran itself, while Iran has retaliated with ballistic missile and drone attacks against Israel. It was a complicated military scenario even before the U.S. intervened directly against 3 Iranian nuclear facilities. Today, I try and parse some of what we've seen so far, and what military observations and lessons we might (cautiously) draw at this early stage.