The Regiment
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.
Science fiction, Life on other planets, Mercenary troops, Space Soldiers, Federation of Worlds
John Dalmas