Definition: In this task, you are given a statement spoken by a politician in natural language. Your task is to generate the subject of the discussion for the given statement. The subject generated is not necessarily a part of the given input. Your answer should contain one or more words.
Input: "President Eisenhower, on the night before the Normandy invasion...[wrote a] letter of resignation to the United States Army for the failure of the landings at Normandy."

military