We all know mistakes were made and blame is shared by quite a few people for the Pearl Harbor "surprise" attack. One issue I'll never understand is how in the world did the American commanders and politicians fail to see the potential of a radar defense. The British had an effective radar defense in the Battle of Britain over a year earlier, so the example was easy to see. Perhaps the location of the Japanese attack was a "surprise", but most everyone in the military or US govt could see that war with Japan was coming. So what was the American radar defense ? 1--Totally inadequate training of the operators. 2--No phones at all for a period of time at the radar stations. 3--Non-existent communication between a control center and the various airfields and other pertinent personnel. What in the world were going to do if the control center conclusively decided there were Jap planes on the way ? The radar gave them about 30 minutes lead, and yet no phones to the airfields ?? Are you freakin kidding me ?? Why even have the radar if the control center can't communicate to the airfields and other personnel on the islands ? Of all of the incompetence I've read about in regards to WW2, it's hard for me to top this one. This isn't just armchair hindsight critisism. The example was there. Our British ally had a brilliant system that was instrumental in their defeat of the Luftwaffe, again, over a year earlier ! I'll never EVER understand this complete incompetence on the part of our US leaders.