Never will so many have given so much for so few. The aliens came to Earth not for conquest, but simply to create a way and watch it played out by humans. But they are prohibited from using any technology not developed on the planet - and 20th century armaments are too primitive for good sport. The answer is to persuade the Earth's leaders to found a thing tank group secretly guided by them to produce 22nd century tech.
John Dalmas—pseudonym for John Robert Jones—wrote many books based on military and governmental themes throughout his career. He grew up in Minnesota and Michigan and resided in Spokane, Washington. He was a parachute infantryman in WWII and was discharged in 1946 without ever being put seriously in harm's way. He has worked as a longshoreman, merchant seaman, logger, construction worker, and smokejumper. He attended Michigan State University, majoring in forestry, but also took creative writing.