So the question ask to match the Cold War events with its years and the answer are the following:
1. Vietnam War - D. 1965-1975
2. Afghanistan War - A.1979-1989
3. Korean War - C.1950-1953
4. Sputnik I launched - B. 1957
5. Fall of the Berlin Wall - E. 1989
6. Cuban Missile - F. 1962
I hope this will help you