The days of the old horse cavalry of the U.S. Army are generally now only seen in movies. But on Fort Huachuca those days of the late 1800s are still alive through the all-volunteer B Troop, 4th Cavalry Regiment (Memorial), honoring a unit which served on the post at various times from 1884 to 1912. Unlike the days of old when the unit protected settlers when America’s westward expansion was at its highest a few years after the end of the Civil War, today’s mission of the small unit is to honor and remember those B Troopers — and by...