The two crossword solutions for the term POST-WWII PRES. are DDE (Dwight D. Eisenhower) and HST (Harry S. Truman). Dwight D. Eisenhower was the 34th President of the United States, serving from 1953 to 1961. He was a five-star general in the United States Army during World War II and served as Supreme Commander of the Allied Forces in Europe. Harry S. Truman was the 33rd President of the United States, serving from 1945 to 1953. He succeeded Franklin D. Roosevelt after his death in April 1945 and led the country through the end of World War II.