I had to share this moving video of the final march of the 41st Sergeant of the Guard, Sgt. 1st Class Andrew Jay. As a military history nut, one of my favorite (and repeated) experiences is watching the changing of the Guard at Arlington. The precision, dignity, and respect of the ceremony should be witnessed by every American. Since 1948, the U.S. Army’s 3rd Infantry Regiment “The Old Guard” has guarded the Tomb 24 hours a day, 365 days a year. This was the final march of the 41st Sergeant of the Guard and it was especially moving as Jay...