The presence of contractors on today's battlefields is without question one of the most significant developments in modern warfare. While many contractors perform relatively benign tasks on behalf of the military, controversy rages around those contractors who offer services that involve the use of armed force.

The rise of the private military industry raises some difficult issues. For example, Jeremy Scahill, one of the industry's most vociferous critics, questions whether the outsourcing of military force is not 'a subversion of the very existence of the nation-state and of principles of sovereignty'. These questions are at essence philosophical challenges to the existence of the private military industry. In Just Warriors, Inc., philosopher and ethicist Deane-Peter Baker argues that, contrary to popular assumptions, a compelling moral and philosophical case can be made in favour of the ongoing utilization of the services that these 'private warriors' offer. The book is a must-read for anyone interested in moving beyond the hyperbole and exploring in depth the real questions that should be asked about the privatisation of military force.