Comparing: All three were significant American heroes during world war 2. All three were presidents of the United States at one point. FDR and Eisenhower both played a huge role in the United States' instruction.
Contrasting: FDR was the longest-running president out of the 2. Truman was president during the first-ever atomic bombing against a country. FDR was the most popular president out of the 2. Truman and Eisenhower played key roles in the cold war.
