During my last few days in Afghanistan, I got a behind-the-scenes look at a “dress rehearsal” for a large-scale training exercise the Afghan National Army’s 215th Corps was planning at Camp Shorabak in Helmand province to showcase the Corps’ military training and enhance interoperability. The scale of the exercise was pretty impressive: it involved hundreds of Afghan soldiers, two of the 215th Corps’ Mi-17 helicopters, and over a dozen M1117 armored vehicles, plus Humvees and trucks. The M1117, used by the U.S. Army’s military police corps and the Army National Guard, has less armored protection than the Mine-Resistant Ambush Protected vehicle,…