This comes after attacking US, French bases and civilian infrastructure in Bahrain, Kuwait, Saudi Arabia, UAE as well as their close friends and mediators in Qatar and Oman
Just like current Iran situation is due to UK and USA “playing country building” 50-70 years ago.
For what it's worth, Iran has claimed their strikes on Oman were mistake, and I believe that too, since Oman seems to have genuinely been trying to help them. Just Oman though. They apparently feel fine about all the other strikes on bystander nations.