Okay, I'll bite: when was the first? I can't think of any (Washington, Roosevelt, or Ike) who did it after they became Commander In Chief. Did Reagan go to Grenada? ;-)
zahid

>>let MS know in a loud voice (as said by the President in '4th of July) 'we
>>will not go quietly into the night!!'
>
>Just to be picky, that's "Independence Day", not "4th of July".
>
>I like that scene because it's only the second time that the Commander-in-Chief has actually led his troops into battle. (and yes, I know the difference between reality and fiction. :-) )