Considering that we have had two men who have held the rank of General (that is higher than Colonel) I would say two. They were Grant and Eisenhower.
He was briefly a colonel in a Tennessee militia cavalry unit during peace time.
George Washington was a colonel during that war, not a general. He resigned his commission afterwards, and did not re-enter military service as a general until the War of Independence.
He saw very limited service in the Revolutionary War, serving as a colonel in the Virginia Militia. His was never in a combat unit. He was President of the United States and so was Commander--in-Chief of military operations during the War of 1812.
No- Harding had no military service.
George Washington held several military positions in the forty plus years of his service. He received the ranks of Major, Lieutenant Colonel, Colonel, Major General, Lieutenant General, and General. He also held the titles of Colonel of the Virginia Regiment, General and Commander-in-Chief of the Continental Army, and Commander-in-Chief of the United States Army.
Zachary Taylor and Jefferson Davis.
ola.
Presidents Carter and Reagan were the Commander in Chiefs during the Iran-Iraq War in 1980-1988.
National Defence Service Medal? Serve in the military during a time of war or major military conflict.
Selective service act.
James Madison, James Polk, Abraham Lincoln, Woodrow Wilson, Franklin Roosevelt, and George W. Bush were never in the military, but were in office during war or major military conflict.
Washington's first military service was as major in the Virginia Militia in 1752, when he was 20 years old he soon saw action in the French and Indian War. He was promoted to lieutenant-colonel in 1754. He resigned his commission in late 1754 but returned to the service the next year and was promoted to colonel and regimental commander. He left the service in 1758 in order to serve in the House of Burgesses . He became active in politics and a leader in the move for independence. When the Revolutionary War began in 1775 Washington was chosen by the Continental Congress to be Commander-in-Chief of all colonial forces and he remained in that position until Cornwallis surrendered to him in 1783.