Gordon R. Dickson's Dorsai: Dorsai's Command

From the back of the book: A Warrior's Ultimate Test You are Mies Ohanlon, active-duty officer of the elite corps known as the Dorsai. Young and inexperienced, you are about to take on your first assignment - a raw, violent challenge that will make or break your career in the finest military force in the universe. The ruthless William of Ceta is exchanging weapons for the rare metals unearthed by a group of mountain revolutionaries. With these weapons, they will attack and plunder Ch'ung City, rendering the kingdom an open target for William's savage invaders. How will you and your men respond? Are you tough enough - and shrewd enough - to survive? And most importantly, can you uphold the Dorsai tradition of pride, strength and courage... without jeopardizing an entire planet? Combat Command book #8