Final answer:
The pact between Great Britain, France, Italy, and Germany that gave Germany part of Czechoslovakia is called the Munich Pact. It was signed in 1938 as an act of appeasement by the Western powers in hopes of avoiding another major war.
Step-by-step explanation:
The pact between Great Britain, France, Italy, and Germany that gave Germany part of Czechoslovakia is called the Munich Pact.
The Munich Pact was signed in 1938, following a conference held in Munich where British Prime Minister Neville Chamberlain, French Prime Minister Édouard Daladier, Italian dictator Benito Mussolini, and German dictator Adolf Hitler agreed to allow Germany to annex certain areas of Czechoslovakia.
The Munich Pact was seen as an act of appeasement by the Western powers, as they hoped it would satisfy Hitler and avoid another major war.