The policy of appeasement had reached its heights by the period between 1936 and 1939. It was felt by many to be the best policy at the time, as it allowed Britain to buy herself some valuable time in order to delay the inevitable war.
Opposition during 1936, when appeasement was first seen as really taking the forefront of foreign policy, was small and weak. However it was by 1939 that the opposition had swelled gradually under opposition leaders such as Churchill to the point where there were only few people who truly believed that a long-lasting period of peace would arise from this idea of appeasing the enemy. Over this period of time, both public opinion and Parliamentary opinion would lean towards the opposing side, based a series of factors that had changed in this 3 year span of time. A poorly-prepped military and defense services, a lack of trustworthy allies, Hitler’s legitimate claims and a change in public opinion all contributed towards a shift in beliefs. Opposition to the policy of appeasing militaristic powers began to grow after Hitler took power in Germany and it became clear to many in Britain that he would carry out his expansionist aims.
Some of appeasement's most vocal opponents came from within government, from people such as Winston Churchill and the Labor party, more significant was the publics strong anti war stance beginning to slowly shift as they learnt more of Hitler and the rise of fascism. However this did not mean that they were strongly in favor of pursuing war with Germany as Chamberlain was greeted like a hero when he returned with “peace for our time” following the Munich Agreement.
Having already known of how crippling the economic costs were following WW1 the idea of pursuing conflict with another foreign power was considered unacceptable. This was compounded by the fact that events occurred so soon after the