What was learned:
* Ultra-high-technology weapons such as "smart-bombs" and cruise missiles managed to hit military targets without damaging civilian sites nearby.
* Unguided "dumb" bombs were no more effective than in past wars in attacking point targets such as bridges or tanks.
* Patriots are very effective in homing-in on the body of an incoming Scud or similar tactical ballistic missile. But you can't count on it to destroy the warhead.
What is still Unknown:
* Why Iraq never used its chemical and biological weapons against allied troops, even though it had them in ample supply.