Did you see that the USS Tripoli, the amphibious assault ship that arrived there from the far east, is not actually an amphibious assault ship ? It's a helicopter landing ship, that can do F35 SVTOL operations.
It will eventually form part of an amphibious landing group, but the other ships that will have the well deck needed for landing craft are not built yet. This is the air support part. It can helicopter marines in, but it still can't launch the landing craft that are needed to consolidate a beachhead. The US can't get armour ashore.
We have to see what is on it's way from the US pacific coast.
It's another demonstration of how the most powerful navy in the world is still lacking. Or at least how it is lacking when it comes to doing a major unplanned operation.