Allied leaders sought to address the Sudetenland conflict by

At the 1938 Munich Conference, Britain and France agreed that Germany could annex the Sudetenland, a region of Czechoslovakia where most residents were German-speaking. This policy, known as appeasement, was intended to prevent war by giving Hitler territory he claimed. Therefore, the answer is agreeing to give Hitler land where the predominant population was German.

AI-written and checked against the verified answer.