I don' know if anyone cares, but here is a list of the Military Service of U.S. Presidents.
http://www.magweb.com/sample/wl020pre.htm
Military Service of Presidents
of the United States
George Washington to Bill Clinton
by Russ Lockwood
Military Service of Presidents of the United States
President State Term of Office Summary of military service
From To
George Washington Va. 30 Apr 1789 4 Mar 1797 Virginia Militia 1754-58; on General Braddock's staff in 1755; appointed C-in-C of armed forces of the Co 1783; commissioned Lt Gen and appointed to command of US Army on a standby basis 3 Jul 1798; died 14 Dec 1799.
John Adams Mass 4 Mar 1797 4 Mar 1801 No record of service.
Thomas Jefferson Va 4 Mar 1801 4 Mar 1809 No record of service.
James Madison Va 4 Mar 1809 4 Mar 1817 No record of service.
James Monroe Va 4 Mar 1817 4 Mar 1825 2d Lt to Maj in Revolutionary War serving from 28 Sep 1775 to 20 Dec 1778.
John Q. Adams Mass 4 Mar 1825 4 Mar 1829 No record of service.
Andrew Jackson Tenn 4 Mar 1829 4 Mar 1837 Maj Gen of Volunteers 1812-14; Brig Gen in US Army 19 Apr 1814; Maj Gen in US Army 1 May 1814; discharged 1 Jun 1821.
Martin Van Buren N.Y. 4 Mar 1937 4 Mar 1841 No record of service.
William H. Harrison Ohio 4 Mar 1841 4 Apr 1841 Ensign to Capt in US Army 1791-98; resigned 1 Jun 1798; appointed Brig Gen, US Army, 22 Aug 1812 and Maj Gen 2 Mar 1813; resigned 31 May 1814.
John Tyler Va 4 Apr 1841 4 Mar 1845 Raised a company for the defense of Richmond in 1813.
James K. Polk Tenn 4 Mar 1845 4 Mar 1849 No record of service.
Zachary Taylor La 4 Mar 1849 9 Jul 1850 Rose from 1st Lt, 3 May 1808 to Maj Gen 29 Jun 1846, US Army, with service in War of 1812 and Mexican War; out of service only from 15 Jun 1815 to 17 May 1816; resigned 31 Jan 1849.
Millard Fillmore N.Y. 9 Jul 1850 4 Mar 1853 No record of service.
Franklin Pierce N. H. 4 Mar 1853 4 Mar 1857 Private to Brig Gen of Volunteers 1846-48 for service in Mexican War.
James Buchanan Pa 4 Mar 1857 4 Mar 1861 No record of service.
Abraham Lincoln Ill. 4 Mar 1861 15 Apr 1865 Capt of Volunteers 21 Apr 1832-27 May 1832; private in Volunteers 29 May 1832-16 Jun 1832 during Black Hawk War.
Andrew Johnson Tenn 15 Apr 1865 4 Mar 1869 Brig Gen of Volunteers 4 Mar 1862-3 Mar 1865 serving as military governor of Tennessee.
Ulysses S. Grant D.C. 4 Mar 1869 4 Mar 1877 Cadet USMA 1839-43; rose from brevet 2d Lt to Capt 1 Jul 1843; resigned 31 Jul 1854 with service in Mexican War; Col of Volunteers 17 Jun 1861 to Gen US Army 25 Jul 1866; commanding general, US Army, 12 Mar 1864-3 Mar 1869.
Rutherford B. Hayes Ohio 4 Mar 1877 4 Mar 1881 Maj of Volunteers 27 Jun 1861 to Brig Gen of Volunteers 19 Oct 1864; brevet Maj Gen 13 Mar 1865; resigned 8 Jun 1865.
James A Garfield Ohio 4 Mar 1881 19 Sep1881 Lt Col of Volunteers 21 Aug 1861 to Maj Gen of Volunteers 19 Sep 1863; resigned 5 Dee 1863.
Chester A. Arthur N.Y. 20 Sep 1881 4 Mar 1885 Inspector general and quartermaster general of New York Militia in Civil War. No Federal service.
Grover Cleveland N.Y. 4 Mar 1885 4 Mar 1889 No record of service.
Benjamin Harrison Ind. 4 Mar 1889 4 Mar 1893 2d Lt of Volunteers 14 Jul 1862 to Col of Volunteers 7 Aug 1862; brevet Brig Gen 23 Jan 1865; mustered out 8 Jun 1865.
Grover Cleveland N.Y. 4 Mar 1893 4 Mar 1897 No record of service.
William McKinley Ohio 4 Mar 1897 14 Sep 1901 Private in Volunteers 23 Jun 1861 to Capt of Volunteers 25 Jul 1864; brevet Maj 13 Mar 1865; mustered out 26 Jul 1865.
Theodore Roosevelt N.Y. 14 Sep 1901 4 Mar 1909 Lt Col of Volunteers 6 May 1898 to Col 11 Jul 1898; mustered out 15 Sep 1898.
William H. Taft Ohio 4 Mar 1909 4 Mar 1913 No record of service.
Woodrow Wilson N.J. 4 Mar 1913 4 Mar 1921 No record of service.
Warren G. Harding Ohio 4 Mar 1921 2 Aug 1923 No record of service.
Calvin Coolidge Mass 3 Aug 1923 4 Mar 1929 No record of service.
Herbert Hoover Calif 4 Mar 1929 4 Mar 1933 No record of service.
Franklin D. Roosevelt N.Y. 4 Mar 1933 12 Apr 1945 No record of service.
Harry S. Truman Mo. 12 Apr 1945 20 Jan 1953 1st Lt in National Guard 1917 (entered Guard in 1905) to Capt 11 Nov 1918; remained in Reserves after WWI; Col in Reserves 1927.
Dwight D. Eisenhower N.Y. 20 Jan 1953 20 Jan 1961 Cadet USMA 1911-15; 2d Lt in RA 12 Jun 1915 to General of the Army 20 Dec 1944; Chief of Staff 19 Nov 1945 to 7 Feb 1948; resigned 18 Jul 1952; served in WW I and commanded ETO in WWII
John F. Kennedy Mass 20 Jan 1961 22 Nov 1963 Commander, US Navy WWII.
Lyndon B. Johnson Tex 22 Nov 1963 20 Jan 1969 Lt. Commander, US Navy, WWII, Commander US Naval Reserves 1948.
Richard M. Nixon Calif 20 Jan 1969 9 Aug 1974 Lt. Commander, WWII.
Gerald R. Ford Mich. 9 Aug 1974 20 Jan 1977 Lt. Commander, US Navy, WWII.
Jimmy Carter Ga. 20 Jan 1977 20 Jan 1981 Lt. Commander, US Navy 1946-1953.
Ronald W. Reagan Calif 20 Jan 1981 20 Jan 1989 Acted in US Army training films.
George H.W. Bush Tex 20 Jan 1989 20 Jan 1993 Lt. WWII, US Navy pilot.
William J. Clinton Ark. 20 Jan 1993 20 Jan 2001 No record of service.
It does not include George W. Bush, but he was a Lieutenant in the Texas Air National Guard and flew F-102's.
If you notice, most Presidents have served in some capacity:
12 presidents did not serve in the military---John Adams, John Quincy Adams, Van Buren, Polk, , Taft, Wilson, Harding, Coolidge, Hoover, FDR and Clinton. Cleveland actually paid someone to fight in his place during the Civil War which was legal and not all that unusual at the time--a kind of pay as you go family deferment).
Of the 30 who served all were officers but James Buchanan who was a Private.
3 rose to the highest rank
General of the Army (5 Stars) - Washington, Grant and Eisenhower
5 Major Generals (2 Stars)
4 Brigadier Generals (1 Star)
3 Colonels
1 Lt Colonel
7 Majors (Navy=Lt. Commander)
2 Captains
4 1st Lieutenants (Navy - Lt. JG)
Andrew Jackson was the youngest to enlist. He joined the South Carolina militia at 13.
23 served in the Army, 6 in the Navy and 1in the Air Force.
15 saw action in combat.
2 pilots - H. Bush and son W Bush
1 submariner, Carter.
2 graduated from West Point Military Academy - Grant and Eisenhouer
1 from Annapolis Naval Academy - Carter.