"While Germany made its way into Poland and Czechoslovakia, still nothing - " peace in our time" right up to the point when there was no alternative."

Fair dos re the earlier appeasement policy but it is simply not true to say that Britain did nothing about the German invasion of Poland though! Both Britain and France had sworn to assist Poland. Germany invaded on the 1st Sept and received an ultimatum from Britain to withdraw. When that was ignored Britain declared war on Germany on the 3rd Sept as did France as well as Canada, New Zealand, Australia and South Africa. They may not have had the ability to evict the Germans from Poland but they went to war over the issue which is pretty major! Certainly compared with the actions of others! The Soviets themselves invaded Poland and only made war on the Germans when they themselves were attacked! The US sat on their hands militarily and only actively joined the war against Germany when Hitler declared war on the US after Pearl Harbour. I think we have to keep the knocking Britain's lack of action thing in persepctive!