Nowadays most legal scholars acknowledge that Yamashita’s execution was a case of victor’s, not legal, justice. Nevertheless his case become a precedent regarding the command responsibility for war crimes and is known as the Yamashita Standard.
An interesting tidbit of history, you’re thinking, but what’s its relevance to today’s U.S. military?
The exercise of authority by military superiors over their subordinates in wars or stability operations, as some like to euphemistically call them, is an essential tool to ensure respect of international humanitarian law, and to prevent the commission of serious crimes.
Thus, for starters, those serving in the regular military, whether active or reserve, understand that they are all part of a strict chain of accountability and that people at the top can suffer severe consequences for the actions of those beneath them. Thus, people in leadership positions have an understandable interest in ensuring people at the bottom of the combat food chain act properly, so the people at the top don’t suffer Yamashita’s fate.
Admittedly, nowadays a general or admiral would be more likely to be demoted and reduced in rank than face a gallows or firing squad. Certainly, there have been cases since then, from My Lai and numerous other barbarities during the Vietnam War, to Abu Ghraib in Iraq, where atrocities took place and those in command suffered no consequences. Nevertheless the principle is established, understood, and accepted.
However, when you add in the secret sauce of today’s modern U.S. military establishment, private military and security contractors (PMSC) that bright, shining principle becomes murky.
Regardless of what side you are on in the eternal PMSC debate, everyone agrees that private contractors are not state officials or employees. That can make it difficult to prosecute and punish their acts, especially when committed on foreign soil.
Despite attempted workarounds — changes to the Uniform Code of Military Justice, modifications to the Military Extraterritorial Jurisdiction Act, criminal prosecutions of PMSCs for alleged wrongdoing are scant.
Micaela Frulli, Aggregate Professor of International Law, University of Florence, Italy, wrote in a 2010 article in the Journal of Conflict and Security Law: