motive to have one is because should you didn’t you would need it. If WWII didn’t happen when it did, the carriers vs. battleships argument would have gone on for years and years. Nevertheless it took a whole lot of time and argument to show it. Until idea could be put into practice in fight, it was one aspect arguing in opposition to another with out being able to show it one way or the other.
individuals close to the tip of the spear. This looks more like a air base-air wing configuration