And on the way to the "new regime", consider this
In 2007, former defense minister and IDF chief Shaul Mofaz told The Jerusalem Post that while he wasn't ruling out a military strike on Iran, "The potential for a regional escalation as a result of an attack is great. Iran sees Israel as a target and has ballistic missiles that can reach every European capital. If it responds, then Hizbullah will respond and maybe Syria, and we don't even know how Hamas will respond." Mofaz quickly forgot those words, but if a wave of opposition arose against the war that's looming, he might remember them.
Iran has demonstrated nothing of a long range capability up to now. keep to the Fen Causeway