Sorry in advance Mark...
For my dad's theatre of War, to some of his opposing forces, it was considered acceptable to eat the flesh of your enemy (liver, buttocks, thighs being the preferred) than that of your own, but as noted and to be specific, officer level, to eat the flesh of your enemy enabled you to be imbued with his strength and spirit, robbing them of theirs... Had too much of this to study as parts of my research, most unfortunately... The Australian War Crimes Tribunal went into this in some considerable detail, but the detailing of the demise of one Australian Officer is quite horrific...