FORT SAM HOUSTON, Texas, June 29, 2010 – Service before self is expected in the military, but one family has taken that concept to new heights. Army Col. Mark Armstrong Sr., right, administers the military oath of office to his son, Army 2nd Lt. Mark Armstrong Jr., at as the U.S. Military Academy at West Point, N.Y., May 22, 2010. Lieutenant Armstrong became the fifth generation of his family to graduate from the academy. Courtesy photo (Click photo for screen-resolution image);high-resolution image available. Army 2nd Lt. Mark Armstrong Jr. graduated from the U.S. Military Academy at West Point, N.Y., marking the...