Dr. Chisato Ueno and Rear Adm. Shimpei Asano were hanged on Guam for killing American POWs on Truk in 1944.

What happened

They were among the last Japanese officers executed after war-crimes trials held on Guam from 1947 to 1949. The case concerned American prisoners of war held on Truk in 1944; Ueno’s defense argued that his treatment of a wounded prisoner was legitimate surgery. This account rests on a blog based on US Navy war-crimes case files.