Trump tweeted some threats yesterday. Then later uploaded this video. What did he mean by that? I don't see any info what that video is about. Perhaps others on twitter have.

I do think the Washington will commit ground troops. What will they achieve? Not much. They show they can?
Hearing everywhere they'll be sitting ducks for Iranian drones on both possible islands.
Historylegends put forward an idea where the US troops could land, in Baluchistan, there is the Chabahar bay, and open land around. There are some ports there and an international airport.
Among other minorities Baluchs was one who could rise up and create problems for the Iranian govt. While they are the smallest minority in number (~2 million) their territory where they are the majority is large, and they already have a low level armed insurgency ongoing.
As I see it it is a place where the US can build up a large force and launch an offensive against the Iranian govt. Alex of Hlegends said the US could avoid using large amount of troops. I don't think Washington (and Tel-Aviv) cares.