More say U.S. intervention in the Vietnam War was the right decision than say it was successful

Right decision: Given what you know now, do you think it was the right or wrong decision for the U.S. military to intervene in the following? (% of U.S. adult citizens who say "right decision")

Success: Would you consider U.S. military intervention in the following to be…? (% of U.S. adult citizens who say "entirely successful" or "mostly successful")