I omitted Kuwait and Oman because I wasn’t sure. I think I read recently that Kuwait was not a wholehearted partcipant in the coalition. I just don’t know about Oman.
Qatar is a belligerent 2 year old searching for relevance.
Both Qater and Oman have recently changed rulers. Qatar is a unique case in that the last emir retired and abdicated in favor of his son if I remember correctly. Oman’s last sultan died childless, so the sultanate passed to a relative. Oman shares the straits with Iran, so their response has to be balanced by their geographic position on the straits and sandwiched between Yemen and the UAE, with whom they have a close and cooperative arrangement.