1. Uddgren, Erland: 1
2. Ukhtomsky, Nikolai: 1
3. Ukraine: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30
4. UKR SMERSH: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26
5. Ulrikh, Vasilii: 1, 2, 3, 4, 5, 6, 7, 8
6. Uman: 1
7. United States: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12
8. UNKVD (Rostov Province): 1, 2, 3, 4
9. UOO (Special Departments Directorate): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36
10. UPA (Ukrainian Insurgent Army): 1
11. UPVI (NKVD Directorate for POWs and Interned Persons): 1, 2, 3, 4
12. U.S. Military Mission: 1
13. USSR Prosecutor: 1, 2, 3, 4, 5, 6, 7, 8, 9
14. Utekhin, Georgii: 1, 2, 3, 4