US, UK, Australia, Romania, El Salvador, Estonia, Bulgaria, Moldova, Albania, Ukraine, Denmark, Czech Republic, South Korea, Japan, Tonga, Azerbaijan, Singapore, Bosnia and Herzegovina, Macedonia, Latvia, Poland, Kazakhstan, Armenia, Georgia, Slovakia, Lithuania, Italy, Norway, Hungary, Netherlands, Portugal, New Zealand, Thailand, Philippines, Honduras, Dominican Republic, Spain, Nicaragua and Iceland deployed troops.
Multi-National Force
Pretty much all of congress agrees to military action to prevent Iran from obtaining nukes.
Iran attacks countries all the time, through proxies. They don't even hide it.