The radar officer waited a minute until the edge of the screen was alive with the signal traces of the enemy fleet and then tried the I.F.F. again. "Identification, Friend", would have caught the coded signal in the automatic transponder and hurled it back to appear on the radar screen. "Identification, Foe", was, he admitted, negative evidence since the foe was not equipped to return the proper signal, and therefore no traces appeared on the screen. This might also be the case with an entirely uninterested fleet of aircraft, or a fleet of commercial carriers. He turned to his second officer and gave a quick order. The second radar officer tuned up another panel of equipment. He watched strange traces on his screen and then said, "If Intelligence is correct, it's them! That's their supposed code, according to the latest dope from G-15." The radar officer picked up the small intercom phone and reported to General Lloyd. A moment later the command radio in each plane barked: "Battle stations!" In the distant fleet, Admiral Sarne watched the radar repeater in his command aircraft, and a similar process took place. And so at almost the same instant, two gigantic fleets turned in the air above the North Sea and started towards one another, their efficient fighting equipment being checked and prepared for action. Intent upon their plans, neither fleet noted the single lone trace that came into the screen from the North and on a course about half way between the approaching fleets. With a thousand signal pips showing in distant flight pattern, the single trace meant little and was not noticed. But Captain Jason Charless, with nothing impending, was alert, and he saw the two masses of aircraft on his radar screen. He looked down at the IFF key on the radar control panel--the first time he had paid attention to it, and saw with a start that there were two such keys. In neat engraving below each key was identifying legend--One for each of the combating countries. Knowing, or guessing shrewdly, Charless pressed first one key and then the other, and in turn the distant transponders caught the identification code keyed to that one equipment and hurled it back to Charless' radar screen. Charless nodded unhappily; his try of the IFF had been but a confirmation of his own belief. And two fleets of mighty fighting strength were hurtling towards one another intending to carry into battle their individual beliefs that the other was responsible for the theft. A grudge fight imminent, and only Charless knew the truth. Another time and Jason Charless would have been willing to get into the battle, more than willing to try the training and equipment of his own way of life against that of another ideology. But this was no time to set man against man. There was a more definite enemy, and man must join man to fight the common foe, forgetting their differences of opinion.