Operation Epsilon
Operation Epsilon was the codename of a program in which Allied forces near the end of World War II detained ten German scientists who were thought to have worked on Nazi Germany's nuclear program . 
<triplet> Allied <subj> World War II <obj> conflict <triplet> World War II <subj> Allied <obj> participant <triplet> Nazi Germany <subj> World War II <obj> participant in <triplet> nuclear program <subj> Nazi Germany <obj> country