The act of appeasing; SYN. calming.
Historically, the conciliatory policy adopted by the British government, in particular under Neville Chamberlain, toward the Nazi and Fascist dictators in Europe in the 1930s in an effort to maintain peace. It was strongly opposed by Winston Churchill, but the Munich Agreement 1938 was almost universally hailed as its justification. Appeasement ended when Germany occupied Bohemia–Moravia March 1939.
War was declared after Germany attacked Poland Sept 1939, the beginning of World War II.