This isn’t the book for the Kris Kristofferson film of the same name or for the Lance Henrikson television show of the same name. Instead, it’s a book written in 1996 about the state of the world and a close call for a nuclear war between the United States and the USSR except for a lunar rebellion that takes control of the warring sides’ incomplete ABM satellite networks.
It’s a pretty good read, and a strange extrapolation about the turn of the century from 1976. Space travel has really gone well, with waystation space platforms and lunar colonies in place for over a decade by the book’s setting. However, no great push to correct software written about the time of the book. Also, the Soviet Union remains a strong force in the world and the UN is a force for good.
A good science fiction book if you can put yourself into the now alternate-universe where it takes place.