Which job was it we were doing anyway?

I'm a little bit confused here. If I remember correctly the job we were doing was disarming Iraq of weapons of mass destruction. Tony Blair certainly seemed to think so.

"On Tuesday night I gave the order for British forces to take part in military action in Iraq.

Tonight British servicemen and women are engaged from air, land and sea.

Their mission: to remove Saddam Hussein from power and disarm Iraq of its weapons of mass destruction.

        Tony Blair's address to the nation, 20th March 2003