Dwight D. Eisenhower was the 34th President of the United States, serving from 1953 to 1961. Before his presidency, he was a five-star general in the U.S. Army and played a crucial role in planning the D-Day invasion during World War II. His leadership helped shape the post-war world and establish NATO. As president, Eisenhower focused on domestic policies that promoted economic growth and civil rights. He is known for his 'Eisenhower Doctrine,' which aimed to contain the spread of communism in the Middle East. His legacy includes the establishment of the Interstate Highway System and a commitment to peace and stability during the Cold War.