When was the last time Iran attacked another country for any reason other than defense of their nation?

I'm not applauding the present government but I see no reason to fear an attack from Iran.

Its true that the Mullahs rule with an iron hand but so did Saddam. Ousting Saddam and invading Iraq didn't solved anything and it certainly did not improve the lives of Iraqi citizens. Its only made matters worse.

Attacking the mad Mullahs or the country of Iran because you don't like its president is no reason for war. If it were, George Bush would be cause for an invasion of the U.S. by any number of countries.