I am a retired University Professor and taught statistics and computer programming for 30 years. I also served in the U.S. Navy for 3 years with tours on the Iwo Jima (LPH 2) and Okinawa (the island). I now live in Shingle Springs, CA with my wife, two horses, one dog and several barn cats. My wife and I used to ride endurance (50 mile or longer horse races) but now just use our horses as pasture decorations.
A few million humans are isolated on a earth-like planet. They occupy a continent that has an ecosystem that is identical to North America of 100,000 BC, complete with Wooly Mammoths and Saber Toothed Tigers. They have just discovered that alien races also inhabit the planet and that these aliens are hostile. This is the first of three books in the New American Continent series.
this is a sequel to "a small glass container." a large, isolated group of humans have established two nations on an alien world and have survived wars with two alien species. the problem is that five different species of intelligent aliens on the planet and most shoot first and never ask questions.