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 Vengeance, 1943 2 Operation Walküre, 1944 -- SEE: Operation Valkyrie, 1944 3 Operation Z, Ukraine, 2022 -- SEE: Russian Invasion of Ukraine, 2022 14 Operational art (Military science) 2 Operational art (Military science) -- Case studies. 1 Operational art (Military science) -- Fiction 3 Operational level of war -- SEE: Operational art (Military science) 2 Operational rations (Military supplies) -- Europe -- History -- 20th century 1 Opérations boursières -- SEE: Bourse 1 Opérations chirurgicales 1 10 20 30 50 100 per page < Previous 10 Headings Next 10 Headings >