'The will' was qualified as 'a square deal for Poland', which probably meant enforcing the recently signed Yalta Agreement. One plan assumed a surprise attack on the Soviet forces stationed in Germany to 'impose the will of the Western Allies' on the Soviets.

The creation of the plans was ordered by British Prime Minister Winston Churchill in May 1945 and developed by the British Armed Forces' Joint Planning Staff in May 1945 at the end of World War II in Europe. The plans were never approved or implemented. Operation Unthinkable was the name given to two related possible future war plans by the British Chiefs of Staff against the Soviet Union in 1945.

1945 plan for war between Western Allies and Soviet Union