RJ_ said:
The DoD already said they were from the pre Gulf War era.
Which I not only agreed with but clearly stated. Depending upon the time frame of thier manufacture they may shed some light on what plans Iraq had for the design and production of WMD leading up to the Gulf War.
The capabilities of the Iraqi WMD program at the start of the Gulf War as well as the intent of Saddam's regime at the same time can help in the search for any remaining WMD from the 80s as well as any WMD created after the Gulf War ended (if any WERE created).
Also, if these WMD were produced by the Iraqis (rather than being imported) then it demonstrates the ability (sans sanctions and an inspection program) to produce WMD.
At the time of the invasion there was a strong push to have the sanctions removed which would have resulted in Saddam once again having the economic power to make massive expenditures on his military.
Since the inspections have been shown to have been only partially effective and there is evidence (such as these pre Gulf War munitions which were hidden from the inspectors and probably even from Saddam's regime) that Iraq was able to outsmart and evade the inspectors it seems reasonable that the most powerful force in preventing an active WMD program during the post Gulf War era was the sanctions themselves.
Minor clarification for a long-running misconception: the no-fly zones were never mandated in the cease-fire agreement. The US/UK/France decided to set it up unilaterally after the fact. Saddam later used this "violation of the cease fire" to justify his own.
Correction noted.
Even ignoring the issue of whether or not victors have the right to impose terms upon the defeated that still leaves the violation of the sanctions and the terms of the treaty as a point of argument. Not to mention violating the U.N. food for oil program or any of the other incidents that, while not justification for an invasion, signify Saddam's willingness to defy the international community.