In 1950, when he commissioned the first edition of The Armed Forces Officer, Secretary of Defense George C. Marshall told its author, S.L.A. Marshall, that "American military officers, of whatever service, should share common ground ethically and morally." In this new edition, the authors methodically explore that common ground, reflecting on the basics of the Profession of Arms, and the officer's special place and distinctive obligations within that profession and especially to the Constitution.

This book explores the human rights consequences of the new mercenarism, as channeled through so-called private military and security companies (PMSCs), and offers an overview of the evolution and status quo of both non-legal (soft law and self-regulation) and legal initiatives seeking to limit them. It addresses various topics, including the impact of the presence of non-state actors on human security using the cases of Afghanistan and Syria; research on PMSCs’ impact on human rights in specific cases; the insufficiency and ineffectiveness of existing direct and indirect legal prohibitions on the use of mercenaries; various aspects of international human rights law and international humanitarian law related to the conduct of PMSCs; soft-law and self-regulation mechanisms; and the international minimum standard in general international law regarding the privatization, export, import, and contracting of PMSCs.