I ask this due to the mixed opinions I find on the subject. Some say the allies just sacrificed Poland and didn't want to provide support, even shaming the allies for their lack of action even if they declared war on Nazi Germany for invading Poland. And others say that the allied country's did all they can, with what they had at the time.
Just want to know what you guys make of this, as I understand its still a bit of a hot topic even today.
The opinion in Poland right now (and for last few decades) is uniform - west betrayed Poland. There was signed treaty that if Poland defends for 2 weeks - Great Britain and France has to invade Germany. Poland defended for over 3 weeks, Great Britain did nothing, France did https://en.wikipedia.org/wiki/Saar_Offensive - they pretended they are fighting for a week and returned back despite high numerical advantage.
It was decided that all offensive actions were to be halted immediately. General Maurice Gamelin ordered his troops to stop "not closer than 1 kilometre" from the German positions along the Siegfried Line. Poland was not notified of this decision. Instead, Gamelin informed Marshal Edward Rydz-Śmigły that half of his divisions were in contact with the enemy, and that French advances had forced the Wehrmacht to withdraw at least six divisions from Poland.
Not only they did almost nothing, they lied to Poland about that. How do you call it if not betrayal?
By the way Germany had almost no army on its western territory at the time, so it wasn't just betrayal, it was also dumb, made long WW2 possible, and costed millions of lives later.
As for opinion during WW2 I don't know - they had much less information, and didn't knew they will be sold by allies to USSR in Yalta later, so they hoped Poland will be free eventually thanks to allies - that must have colored their opinion.