Gah and you are all into mistake. GB and France entered World War 2 not to protect Poland (I assume that we are looking for real reasons not casus belli). People from GB and France - sorry but you have to face the truth.
And thats why Jaeger was right talking that no one cares about Poland. Ok maybe Churchill a bit but into 1945 he lost leadership.

But you Jaeger are making another mistake. Don't you remember that France fallen into 1940 and GB was close to fall. Do you really believe that they would stop war when they were clearly winning. And give Germany time to get stronger? They knew that victory of Germany would made them strongest country into Europe. Empire stronger than France and GB. Thats why they would not stop after Hitler's death. They simply knew that winner of this war will be ruling Europe and probably world.

Anyway jaeger - battle of Falaise was not disaster. It was great victory that let Allies finish with Germany faster.