He is going to spend the next few moments concentrating very hard on those antennas, and so he turns his head for a moment to get a bearing on the American LCM—the landing craft that the Nip suicide boat was hoping to destroy. It is exactly where it is supposed to be—halfway between the encircling force of naval ships and the sheer, forty-foot-high wall of the fortress. Even if Shaftoe didn’t already know the plan, he would, at a glance, identify this vessel as a Landing Craft, Mechanized (Mark 3), a fifty-foot-long steel shoebox designed to cough a medium-sized tank up onto a beach. It has a couple of fifty-caliber machine guns on it which are pounding away dutifully at various targets on the wall of the fortress which Shaftoe cannot see. But from his vantage point On High he can see something that the Nipponese can’t: the LCM is not carrying a tank, in the sense of a vehicle on caterpillar treads with a gun turret. It is carrying, rather, a tank in the sense of a large steel container with pipes and hoses and stuff attached to it.