Foreign enlistment - History.

Mercenaries. = The History of a Norm in International Relations. by: (Electronic resources)

Transnational soldiers = foreign military enlistment in the modern era / by: (Electronic resources)

Military history, Modern.

International relations- Moral and ethical aspects.

Foreign enlistment- History.

Mercenary troops- Moral and ethical aspects.

Mercenary troops- Legal status, laws, etc.

Mercenary troops- History.

War- Moral and ethical aspects.

HISTORY / Military / Biological & Chemical Warfare