George Bush took the war on terra to Iraq without knowing the difference between Sunni and Shia muslims, or much about Kurds in the north for that matter.
How'd that go?
Well enough, according to John McCain that we should extend our know-nothing foreign policy into Iran. McCain doesn't know how the Iranian government is structured, doesn't know who is in charge of what, doesn't know which brand of muslims are in the majority and doesn't know what their affiliations are. Yet he takes Obama to task for saying he would talk to Iran before going all shock and awe on them. Bomb first, ask questions later. In fact, he thinks Iran is as great a threat to us today as the Soviet Union was to us throughout the cold war.
Bomb first, ask questions later. (On the upside there would be no "Cuban Missile Crisis". We'd just bomb, bomb, bomb.)
And McCain's strong point is foreign policy because he doesn't know much about economics?