The Regiment: A Trilogy

The planet Tyss has only one resource: soldiers. But they are very good soldiers. And once a regiment is formed, it never recruits again; as its members fall in battle, it simply grows smaller to become a battalion, a company, a platoon, a squad . . . and then there are none. But before the last man of this regiment has flung himself into battle, the Federation of Worlds will never be the same.