Confirmed
My source was the RAND report. I've kept on reading, finished the chapter on Germany and I'm near the end of the chapter on Japan, and they confirm. At the time I posted that, I'd read chapter 9, the conclusions. Two relevant citations from that chapter:
Before Iraq, the highest number of postconflict combat deats were in Somalia (43) and Afghanistan (30).
Verbatim quote: "Germany, Japan, Bosnia, and Kosovo had no postconflict combat deaths."
I'm citing only combat deaths. It would be silly (if the subject weren't so grim) to try and lump in deaths by accident (not related to active military operations), misadventure, and disease.