President Trump met with those leaders plus more soon after taking office. I expected, but didn’t see, him forming an alliance that would do the heavy lifting in the mideast with the US in a support role.
Pretty sure that was Trump’s first overseas trip. That Gulf alliance did do most of the heavy urban fighting eliminating ISIS from Mosul and a couple of other cities. They have some world class special ops people. We’ve been calling UAE “Little Sparta” for some time now. They may not have size but they do have fight.