Which presidents served only in peacetime?

The US has had a lot of small conflicts that involved military action, but all presidents except for Madison, Polk, Lincoln, McKinley, Wilson, F. Roosevelt, Truman, Lyndon Johnson. G. H. W. Bush , George W. Bush and Obama either served only in peace time or had only brief periods when they called on the military for foreign or domestic disputes. I did not count Indian Wars which broke out from time to time but usually did not last long. So, you could say the 31 presidents served only in peace time.