Mercenary

by Mack Reynolds

"Mercenary" by Mack Reynolds is a science fiction novel published in 1968. In a future where Western society is divided into rigid castes, Joe Mauser, a Mid-Lower soldier, sees one chance for upward mobility: military service. Corporations now settle disputes through televised battles using pre-1900 technology. When Mauser joins an underdog company in a high-stakes corporate war, he bets everything on an untested tactical innovation that could defeat the finest commander in the business—and finally elevate him to the Upper caste.