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 will" was qualified as "a square deal for Poland", which probably meant enforcing the recently signed Yalta Agreement. The planners decided that without massive American help Britain would probably fail. The assessment, signed by the Chief of Army Staff on June 9, 1945, concluded: “It would be beyond our power to win a quick but limited success and we would be committed to a protracted war against heavy odds." The code name was now reused instead for a second plan, which was a defensive scenario in which the British were to defend against a Soviet drive towards the North Sea and the Atlantic following the withdrawal of the American forces from the Continent.