The agreement authorizing the annexation of the Sudetenland by Germany was signed on 29 September 1938. The Munich Pact was an agreement reached on 29 September 1938 in Munich between Germany, Great Britain, France and Italy on the abandonment of the territory to Germany. Later, at the meeting, a deception was agreed in advance to influence and pressure Chamberlain: one of Hitler`s accomplices entered the room to inform Hitler of other Germans killed in Czechoslovakia, and Hitler then shouted: “I will avenge each of them. The Czechs must be destroyed.  The meeting ended with Hitler`s refusal to make concessions to the demands of the Allies.  Later that evening, Hitler was concerned that he had gone too far to put pressure on Chamberlain, and he called Chamberlain`s hotel suite to say that he would only accept the annexation of Sudetenland without plans in other areas, provided that Czechoslovakia began evacuating ethnic Chechens from the majority regions of Germany by 8 p.m. on September 26. After being pushed by Chamberlain, Hitler agreed to issue the ultimatum for October 1 (the same date on which Operation Green was to begin).  Hitler then told Chamberlain that it was a concession he wanted to make to the Prime Minister as a “gift”, out of respect for the fact that Chamberlain was prepared to back down a little from his previous position.  Hitler added that after the annexation of the Sudetenland, Germany would no longer have territorial rights over Czechoslovakia and would enter into a collective agreement to guarantee the borders of Germany and Czechoslovakia.  7. There is a right to vote in and out of the transferred territories, the possibility to exercise within six months from the date of this agreement.
A German-Czechoslovakian commission defines the terms of the option, examines the possibilities of facilitating the transmission of the population and resolves the fundamental issues arising from this transfer. On 30.m September, 11 hours after the Czechoslovakian government agreed to the Munich terms, Poland issued an ultimatum to the Czechoslovakian government.  It demanded the immediate evacuation of Czechoslovakian troops and police and gave Prague until noon the next day. On 1 October at 11:45 a.m. .m. the Czechoslovak Foreign Ministry called the Polish ambassador in Prague to tell him that Poland could get what it wanted, but then asked for a 24-hour delay. On 2 October, the Polish army, under the command of General W. Bortnowski, annexed an area of 801.5 km2 with 227,399 inhabitants.