Well, if anyone was saying that, they obviously didn't know much about European history, since the Europeans had been happily murdering each other for several thousand years, pretty much nonstop.

Every European country had been at war with every other European country since there were such things as European countries.

List of conflicts in Europe
[link to en.wikipedia.org]

You folks sure aren't very well educated, are you.

The fact remains that the Iranians haven't started a war with anyone for quite awhile now.