Starting war under "false pretenses" actually illegal?

Article 2:

I’m not try justify anything, I was just trying to educate you. You don’t understand the charter. It only forbids the first act of aggression. It does not forbid any country from defending itself or retaliating. The Carter rescue mission was retaliation, not a first strike.

As soon as it’s clear you’re acting in self-defense, you’re in the clear Article 51:

More explication of the law from [url=]this site:

Iraq did not fit any of ths criteria despite the Bush administration’s attempts to use an “imminent threat” justification for a preemptive strike. They were never able to prove the threat existed and indeed, it did not.

Oops. Forgot the link. Here it is.

http://www.lcnp.org/global/iraqstatement3.htm