Boy, that brings back chilling memories. I rode in HETs (top photo) often on active duty and had a very small hand in the development of the Stryker vehicles, as I was in what eventually became the first Stryker Brigade in the Army, during a transition from heavy mech. I was involved in some of the tests where we picked the interim vehicle before the Stryker design was done, and our experiments had influence over the design to a degree of the vehicle you see on the yellow flats above.
The upper and lower photos, I've seen many times. The center one, I hadn't seen that in a long time. I can't tell the year on the carrier's license plate and the details aren't crisp enough to tell if these jeeps are going to surplus or simply being delivered somewhere without a railhead, or delivered piecemeal.