Not all the threats have been only threats if "Iran is attacked". Here's one from 6/9/2010: "[We] will change many issues in the world and mark the final countdown for Israel's existence," Ahmadinejad said. That was a threat from Ahmadinejad and he says nothing about being "attacked first".
North Korea insists it 'regrets,' not apologizes, over mine blast that killed 2 South soldiers (AP)
from the article: Iran Defense Minister: Israeli strike would be a suicide mission