Soldiers in Vietnam and students involved in antiwar protests had expectations about what authority figures would and would not do.
Attitudes shaped by World War II were not always a good fit in the Vietnam era. Decisions that might have previously gone unchallenged now generated substantial protest.
When Madison police were summoned on the University of Wisconsin campus in October 1967, there were bloody consequences.
The Viet Cong relied on their knowledge of local terrain and the element of surprise, with often deadly results.
Twenty-year-old Mike Troyer had taken some college classes, but fell below the minimum threshold for a deferment. He was drafted in 1967.
What drove a company of American soldiers to commit the worst atrocity in U.S. military history?
Watch the opening scene of My Lai.
Was the price of winning the war a price worth paying?
A detailed timeline of the events at My Lai and their aftermath.
Almost a year before O'Brian's arrival in the same area, a platoon from the American Division had been responsible for the massacre at My Lai.
Larry Colburn was a gunner in Hugh Thompson's helicopter on March 16, 1968 at My Lai, Vietnam.
He was a general's son, she a beauty queen. But their family was broken by Vietnam.