Nathan enlisted at the Navy yard in Madisonville, LA. He served under Gov. William. C.C Claiborne, Col. Warner and Capt. Bickham in the 13th regiment, LA Militia, in the war of 1812. Nathan served on a foward position on picket guard. It was the LA militia's job to make sure the British did not sneek in to New Orleans through Gentilly. The British decided to drag their canons and equipment through miles of swamp, giving Andrew Jackson time to make a defensive position in Chalmette. He was honorably discharged in March 1815.