A policy of appeasement, or giving in to the demands of the aggressor in order to keep the peace, was followed by France and Britain. Both countries followed the policy since they were not ready to take in another war in the 1930s.
The supply of coal was crucial to the industrial revolution because coal was cheap and affordable and also it was an excellent source of energy. Coal was the best energy source at the time of the industrial revolution and would allow for machines to be coal powered.