This is an omnibus of two of Norton's science fiction adventure stories. They tell the stories of the start of human space travel and interaction with established, intelligent, alien civilization, in Star Guard (1953), and, four thousand years later, a story that reflects the spreading collapse of that same galactic civilization in Star Rangers (1953), later reprinted under the title The Last Planet (1955).
In Star Guard, humans have achieved star flight, but found an exiting multispecies polity in which the government, "Central Control," deems humans too aggressive for full membership, and assigns them the role serving as mercenaries in the on-planet conflicts of other species. For more technologically advanced cultures, Terra provides "Mech" units, using things we'd recognize as really advanced tanks, airplanes, missiles, and energy weapons. For lower-tech cultures, they provide "Arch" units, using swords, spears, nothing more advanced than rifles, and some form of radio communication between units. Kana Karr, Swordsman Third Class, arrives at Prime to enlist for his first assignment off world. The first assignment offered him is allegedly a simple police action, a good way to get some basic experience without jumping in the deep end. It's on a planet called Fronn, and it's apparently his somewhat eccentric choice to take all the course he can on X-Tee, Alien Liaison service.









