Interestingly, Heinlein's _Starship Troopers_ is the only book, other than _The Bible_ to be on the reading lists of _all_ the U.S. Service Academies.

That said, while the Marines dream about powered armor and self-deploying troops, the reality is nowhere near that yet.

As noted, one needs to have control of the LZ --- if that weren't critical, then Spec. Ops. would have actually done something with the idea of putting pods containing soldiers under the wings of Harrier jump jets, and the V-22 Osprey would have a forward-firing weapon --- keeping control of an airfield is hard, which is why AF Sec. Police train to fight against Spetsnaz and the U.S. had RoK Marines guarding their bases during Vietnam.

What does a supply chain look like in a time of drone warfare? How does one control a perimeter and maintain the surface of a runway against an opponent which is well-equipped? (For an example of how critical that can be, see AF-4590)