Robert Duvall is best known for his 70-plus years in Hollywood, playing such iconic military roles as Lt. Col. Bill Kilgore in "Apocalypse Now," Maj. Frank Burns in "M*A*S*H" and Gen. Dwight D. Eisenhower in the TV miniseries "Ike: The War Years." But did you know that before his acting career took off, Robert Duvall served in the Army, shortly after the end of the Korean War?  Robert Duvall’s Early Life Actor and filmmaker Robert Duvall was born in San Diego, but grew up a Navy brat — an...