Iran basically has the support of both Russia, China and also Pakistan
if there is another middle eastern war the economic experts proclaim Euro will collapse and the entire European economy will gradually fall down. the major reason is Russia and the blockage of the supply routers through Iran and when the supply routes blocked by hostile forces merchants have to go through them and it will cost them heavily. so the prices of consumer goods will rise sky high and european people have to worry about them heavily. war with Iran is a not a easy thing like with Iraq and Afghanistan. Iran has a lot of underlying connections and they won't give till last drop. if there something happens in european economy it would affect to entire world. and Russia apart from Norway owns the half of natural gases in Europe and they might probably block them to allies of Americans. I hope American won't attack Iran if it happens we everyone has to pay the consequence. perhaps everyone can see a Nuclear winter.