#Iran: full occupation virtually #impossible (3x Iraq's population) terrain military capability #bottomline: #Iran conflict NOT repeat of #Iraq more dangerous #militarily more economically disruptive (#StraitofHormuz), potentially shorter in duration due to economic pressure and Iran's inability to sustain prolonged conventional warfare. carries risk of regional #escalation global #economic #crisis, rapid #escalation into something much broader that drags in other regional and global powers