The Pentagon’s halls are adorned with artifacts, paintings and portraits that herald each of the service’s illustrious histories. Walking from one wing to another visitors and staff pass portraits of military greats like Maj. Gen. John A. Lejeune, Gen. George S. Patton, and Adm. Chester Nimitz. One portrait, however, was a mystery that turned out to be a prank of epic proportions. Check out this story by the Wall Street Journal on how Capt. Eldridge Hord III, now 53, has had his portrait hanging in the nation’s seat of military power for nearly a year with a plaque claiming it…