Operation Valkyrie happened in 1944.
Operation Diesel happened in 2009.
Operation Kremlin happened in 1942.
Operation Sandcastle happened in 1955.
Operation Motorman happened in 1972.
Operation Safraan happened in 1979.
no it failed
nope
maybe
Valkyrie Profile happened in 1999.
Valkyrie Complex happened in 2009.
Valkyrie no Densetsu happened in 1989.
Adolph Hitler
I take it you mean Operation Valkyrie, which was on July 20th, 1944.
Britain and United States
Operation: Valkyrie, I believe.
MythBusters - 2003 Operation Valkyrie 9-12 was released on: USA: 22 December 2010 Canada: 8 May 2011 Australia: 6 June 2011 Finland: 4 April 2012
Valkyrie means 'Chooser of the Slain.'