Somthing along the lines of the Spanish civil war IMHO.
Excellent analogy! That's precisely the era.
Iran's deadline has passed. With each passing day the Iranian Islamic brutes mock and laugh at the inability of a united Western front.
The question is will Washington allow further appeasement & UN foot-draging relating to a swift, enforceable, long over due reciprocity for Tehran's belligerency on the jihadist enemy's drive for offensive nuclear weapons (not to mention Iran's biological weaponry arsenal)?
Previously we went down an elongated "diplomatic" dead end with Saddam, until President Bush had had enough and correctly acted, regardless of France, Russia and other nations refusing to enforce the countless UN referendum's the Iraqi régime repeatedly & brazenly violated, all due to very lucrative interlinked Iraqi oil deals (most of which were paid to the Saddam clan in Euros - not US $$$.
It's time to react to the Iranian Islamic terrorist and economic threats, not repeat the insanity of the UN's Iraqi joke.