Did Britian & France instigate WWII???

It is becoming increasingly dificult to be a supporter of Pat Buchanan. In response to President Bush's speech in Europe in which Bush said the pact at the end of WWII which gave the Soviets control over the Eastern and some Central European nations was a grave mistake and not a moment of celebration to those countries. Buchanan said:
"If the West went to war to stop Hitler from dominating Eastern and Central Europe, and Eastern and Central Europe ended up under a tyranny even more odious, as Bush implies, did Western Civilization win the war?"
This is a valid question, I believe that the world was much better off without the Nazis. Buchanan suggests that it was Britain and France that forced Germany into a larger war by declaring war to defend Poland from Germany. Furthermore, Buchanan suggests thatBritain lost the war because they entered it to defend Poland which ended up in communist rule anyways. On a certain level Buchanan could be considered correct that Britain did not achieve its initial goals. But I think it is extremely naive to believe that the Nazis were not attemping to control more of Europe. Remember Poland was not the firs country that Hitler invaded.
As for Buchanan raising the point that Hitler was elected therefore the German people did not need to be liberated from their elected leader. This is a common misconception. Sure Hitler was elected, but not until he gained power of the electoral system. The elections were far from free and fair. Still Hitler did have a measure of popularity with the German people. His popularity did plunge after he got Germany involved in a war with the entire continent. Gemanies top military leaders unsuccessfully tried to assasinate Hitler on many occassions. Make no mistake Buchanan makes a good argument but it is wrong. The French and the British were obligated to get involved because the war was in their back yard. I could not imagine a situation where the United States let a country take over Mexico or Cananda. To suggest that France and Britain instigated the war with Germany by not allowing Germany to militarily dominate and occupy the entire region is ridiculous.
Europe and the rest of the allied countries had no choice but to completely break the German people, military and political system, and that is exactly what they did.
I will answer his other question on who was worse the Soviets or the Nazi's later today.