E-text prepared by Greg Weeks, Mary Meehan, and the Project Gutenberg Online Distributed Proofreading Team (https://www.pgdp.net/) Note: Project Gutenberg also has an HTML version of this file which includes the original illustrations. See 18814-h.htm or 18814-h.zip: (https://www.gutenberg.org/dirs/1/8/8/1/18814/18814-h/18814-h.htm) or (https://www.gutenberg.org/dirs/1/8/8/1/18814/18814-h.zip) Transcriber's note: This etext was produced from _Astounding Science Fiction_, March, 1950. Extensive research did not uncover any evidence that the copyright on this publication was renewed. THE MERCENARIES by H. BEAM PIPER Illustrated by Brush _Once, wars were won by maneuvering hired fighting men; now wars are different--and the hired experts are different. But the human problems remain!_ Duncan MacLeod hung up the suit he had taken off, and sealed his shirt, socks and underwear in a laundry envelope bearing his name and identity-number, tossing this into one of the wire baskets provided for the purpose. Then, naked except for the plastic identity disk around his neck, he went over to the desk, turned in his locker key, and passed into the big room beyond. Four or five young men, probably soldiers on their way to town, were coming through from the other side. Like MacLeod, they wore only the plastic disks they had received in exchange for the metal ones they wore inside the reservation, and they were being searched by attendants who combed through their hair, probed into ears and nostrils, peered into mouths with tiny searchlights, and employed a variety of magnetic and electronic detectors. To this search MacLeod submitted wearily. He had become quite a connoisseur of security measures in fifteen years' research and development work for a dozen different nations, but the Tonto Basin Research Establishment of the Philadelphia Project exceeded anything he had seen before. There were gray-haired veterans of the old Manhattan Project here, men who had worked with Fermi at Chicago, or with Oppenheimer at Los Alamos, twenty years before, and they swore in amused exasperation when they thought of how the relatively mild regulations of those days had irked them. And yet, the very existence of the Manhattan Project had been kept a secret from all but those engaged in it, and its purpose from most of them. Today, in 1965, there might have been a few wandering tribesmen in Somaliland or the Kirghiz Steppes who had never heard of the Western Union's Philadelphia Project, or of the Fourth Komintern's Red Triumph Five-Year Plan, or of the Islamic Kaliphate's Al-Borak Undertaking, or of the Ibero-American Confederation's Cavor Project, but every literate person in the world knew that the four great power-blocs were racing desperately to launch the first spaceship to reach the Moon and build the Lunar fortress that would insure world supremacy.