All to defend a country that wouldn't help us when we needed it despite a treaty.
It was actually because they were unprepared to invade and attack - the treaty was to intimidate Germany not to attack rather than any expectation that it would stop an invasion that was underway. This is obvious if you consdier that there was no way to stop Germans invading Poland, as to get there the British and French would need to get through Germany first. The rapid defeat of the British and French armies when they did attack, leading the Dunkirk, shows that it would have been even more futile to attack Germany in September 1939 - they were not able to.
If London had been left to 'burn', then the Polish govt and remains of the army would also have gone up in smoke (it was exiled there), and there would have been almost no chance of Poland ever been liberated, even now - there would have been no European base from which the Americans could attack.
Nice of the Yanks to finally join the fight, of course. Two years later than everyone else.
Now, who is a retard with low reading comprehension?
You are, because you seem to have missed the importance of the word "possibly".
just like the brits let warsaw burn
Actually, when Warsaw was burning during the Uprising, 133 British pilots were shot down trying to make airdrops. About 50 of them are buried in Poland. Roosevelt wouldn't commit any American support, and was against making any airdrops, for fear of irritating Stalin before the Yalta conference. Of course, we know what happened at Yalta, where Poland was given up to the Soviets. By that point Churchill was basically a bystander, as the British Empire was bust and Churchill no longer had any operational influence over Roosevelt, who called the shots and had no interest in Poland. In Churchill's memoirs he says that what happened to Poland is one of his biggest regrets of the war.
So it's odd that such a Plastic Polish Patriot as yourself is happy to take citizenship and live in the country that did more to screw Poland than any other country except the USSR and Nazi Germany. They still wont even give Poles visa-free travel - don't trust 'em, do they? Good Ole Uncle Sam, eh? Your country.