Before he was President, Eisenhower was a general in which war?

The correct answer is that Eisenhower served as a general during World War II. His military career included significant leadership roles, most notably as the Supreme Commander of the Allied Expeditionary Forces in Europe. In this role, he was responsible for planning and executing operations that ultimately led to the defeat of Nazi Germany, including the D-Day invasion at Normandy in 1944.

This period of service was pivotal not only in shaping his military legacy but also in launching his political career, as the experience and recognition he gained from leading such a crucial conflict contributed to his election as President of the United States in 1952. This focus on his World War II achievements, rather than his involvement in other conflicts listed, highlights the importance of that particular war in his life and career.