Mercenaries

Red Knight

Miles Cameron

Strange fortune

Josh Lanyon

The traveller

John Twelve Hawks

Mercenaries

Tim Ripley

Private armies and military intervention

David Shearer.

From the barrel of a gun: the United States and the war against Zimbabwe, 1965-1980

Gerald Horne.

The case of the Hanover forces in the pay of Great Britain, impartially and freely examined: with some seasonable reflections on the present conjuncture of affairs

Chesterfield, Philip Dormer Stanhope Earl of, Edmund Waller

Former Soldier Seeks Employment

Miller, John undifferentiated

Corporate Warriors: The Rise of the Privatized Military Industry (Cornell Studies in Security Affairs)

P.W. Singer

Encyclopedia of Guerrilla Warfare

I. F. W. Beckett