You let your soil be used as launch point for attack on a country, those bases become a targetOkay seriously speaking, why did Iran attack its neighbouring Arab countries from overseas with most of the targets appear to be civilian infrastructure?
Regardless of the supposed agents or servicemen active around said area, wouldn't this be a sign of bad strategy?
You let US and Israeli personnel operate out of your country in this war, they become targets for elimination.
Japan and Korea should remember this well.