After the Austrian Anchluss, Czechoslovakia was to become Hitler's next target. Hitler's strategy was to exploit the existing Sudeten German minority problem as a pretext for German penetration into eastern Central Europe. Sudeten German leader Henlein offered the SdP as the agent for Hitler's campaign. Henlein met with Hitler in Berlin on March 28, 1938, and was instructed to raise demands unacceptable to the Czechoslovak government. In the Carlsbad Decrees, issued on April 24, the SdP demanded complete autonomy for the Sudetenland and freedom to profess Nazi ideology. If Henlein's demands were granted, the Sudetenland would be in a position to align itself with Nazi Germany.

In 1938 neither Britain nor France desired war. France, not wanting to face Germany alone, subordinated itself to Britain. British prime minister Neville Chamberlain became the major spokesman for the West. Chamberlain believed that Sudeten German grievances were just and Hitler's intention limited. Both Britain and France advised Czechoslovakia to concede. Benes, however, resisted pressure to move toward autonomy or federalism for the Sudetenland. On May 20, Czechoslovakia initiated a partial mobilization in response to rumors of German troop movements. On May 30, Hitler signed a secret directive for war against Czechoslovakia to begin no later than October 1. The British government demanded that Benes request a mediator. Not wishing to sever his ties with the West, Benes reluctantly accepted mediation. The British appointed Walter Runciman as mediator and instructed him to force a solution on Benes that would be acceptable to the Sudeten Germans. On September 2, Benes submitted the Fourth Plan, which granted nearly all the demands of the Carlsbad Decrees. Intent on obstructing conciliation, the SdP held a demonstration that provoked police action at the town of Ostrava on September 7. On September 13, the Sudeten Germans broke off negotiations. Violence and disruption ensued. Czechoslovak troops attempted to restore order. Henlein flew to Germany and on September 15 issued a proclamation demanding the return of the Sudetenland to Germany.

On September 15, Hitler met with Chamberlain at Berchtesgaden and demanded the swift return of the Sudetenland to the Third Reich under threat of war. The Czechoslovaks, Hitler claimed, were slaughtering the Sudeten Germans. Chamberlain referred the demand to the British and French governments; both accepted. The Czechoslovak government resisted, arguing that Hitler's proposal would ruin the nation's economy and lead ultimately to German control of all of Czechoslovakia. Britain and France issued an ultimatum, making the French commitment to Czechoslovakia contingent upon acceptance. On September 21, Czechoslovakia capitulated. The next day, however, Hitler added new demands, insisting that the claims of Poland and Hungary for their minorities also be satisfied.

The Czechoslovak capitulation precipitated an outburst of national indignation. In demonstrations and rallies, the Czechoslovaks called for a strong military government to defend the integrity of the state. A new cabinet, under General Jan Syrovy, was installed, and on September 23 a decree of general mobilization was issued. The Czechoslovak army, highly modernized and possessing an excellent system of frontier fortifications, was prepared to fight. The Soviet Union announced its willingness to come to Czechoslovakia's assistance. Benes, however, refused to go to war without the support of the Western powers. War, he believed, would come soon enough.

On September 28, Chamberlain appealed to Hitler for a conference. Hitler met the next day, at Munich, with the chiefs of government of France, Italy, and Britain. The Czechoslovak government was neither invited nor consulted. On September 29, the Munich Agreement was signed by Germany, Italy, France, and Britain. The Czechoslovak government capitulated September 30 and agreed to abide by the agreement.

The Munich Agreement stipulated that Czechoslovakia must cede Sudeten territory to Germany. German occupation of the Sudetenland would be completed by October 10. An international commission (representing Germany, Britain, France, Italy, and Czechoslovakia) would supervise a plebiscite to determine the final frontier. Britain and France promised to join in an international guarantee of the new frontiers against unprovoked aggression. Germany and Italy, however, would not join in the guarantee until the Polish and Hungarian minority problems were settled.

After Munich, Bohemia and Moravia lost about 38 percent of their combined area, as well as about 2.8 million Germans and approximately 750,000 Czechs to Germany. Hungary received 11,882 square kilometers in southern Slovakia and southern Ruthenia; only 53 percent of the population in this territory was Hungarian. Poland acquired Tesin and two minor border areas in northern Slovakia (see fig. 8).

Data as of August 1987