Anyone know what the oldest unit still in the U.S. military is? I think at least two answers would be appropriate, active and reserve or guard. I am sure there are a few that go back to 1776 but how about before that?

I bet its Cavalary but i dont know which one

I think that the reserves are the oldest...

when in doubt go army!

this link is to the FAQ for the official army historical group

http://www.army.mil/cmh/lineage/OrgHist.htm#AppE

this is what they say:

The oldest unit in the active Army is the 1st Battalion, 5th Field Artillery, which perpetuates the Alexander Hamilton Battery of the Revolutionary War. The oldest regiment in the active Army is the 3d Infantry (The Old Guard), which was originally organized in 1784 as the First American Regiment. However, the oldest units in the entire Army, dating back to 1636, belong to the Massachusetts Army National Guard.

damn! that's a way back

The army reserve sent me a video that showed everything about this, it showed all about the history of the reserves and also showed that many presidents that participated in the reserves.

Originally Posted by Mark Conley

The oldest unit in the active Army is the 1st Battalion, 5th Field Artillery, which perpetuates the Alexander Hamilton Battery of the Revolutionary War.

AHOA!

It dates WAY back before that..
When the big man said "Let there be light", we had a battery of 155s in position, locked and loaded with Illumination shells..

That is old!!

Amazing 8)

I'm going to have to find out from my Father what units my ancestors served in. He's been working on filling out our family Bibles lately, and found one of our ancestors had served in the military during the French and Indian War in 1756. It would be interesting to see if his unit is still around in any way.