Search for: Title Author Subject Series that begins with: 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings > Browse Headings # Operation Valkyrie (1944) 5 Operation Valkyrie, 1944 -- Drama 3 Operation Valkyrie, 1944 -- Juvenile fiction. 1 Operation Valkyrie, 1944 -- Juvenile literature. 1 Operation Varsity, 1945 2 Operation Vengeance, 1943 2 Operation Walküre, 1944 -- USE: Operation Valkyrie (1944) 5 Operation Z, Ukraine, 2022 -- USE: Russian Invasion of Ukraine, 2022 17 Operational analysis -- USE: Operations research 1 Operational art (Military science) 1 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >