Pffffttttt..... Must control myself while typing educational responses... (and apologies for the double post)
Vietnam, yes it was a bit of a mess... I notice you do not mention the number of Vietnamese executed by the North: before, during and after the war? Figures of between 650,000 to 2.4 mil are often fielded.
Iraq in '91- how about the 25,000 Kuwaitis killed in the occupation. A war they didn't start nor provoke (BTW, it is likely more Iraqi civilians died by AA fire and SAM's returning to earth than by Coalition weapons - the Iraqis deliberately removed the self-destruct on numerous missiles in the hope of a proximity kill on it's return to earth - after all, a hit is a hit, even if it was the result of luck).
Any mentions of the number of Iraqis killed by Mr Hussein while were on the subject...? It is likely he is directly responsible for more muslim deaths than any other person in modern history (Stalin may compete but estimates of his tally vary wildly).
Kosovo/Balkans - less than 0.5% of civilian fatalities in the Balkans were the result of NATO action - where were the protests while Serb forces were 'ethnic clensing', or shooting hundreds, perhaps thousands of civilians. The entire death toll since 1993 was around the 700,000 mark!
Afghanistan - very few 'true' civilians killed by 'NATO' (<1000) in this round of operations. Again, the existing regime actively supported Al Qaeda and when you are faced with an entire nation supporting a fanatical terrorist organisation the results can be catastrophic if you sit by and do nothing
(For those of you who want to be depressed, just imagine what 9/11 would have been like if there was a few kg's of VX on each plane, or a dirty bomb, etc. A crazy with a bomb can appear anywhere, and he/she may kill a few hundred people - a well funded group of crazies with support from a nation can kill tens of millions and cause the entire world economy to collapse. Anyone still want to see Iran develop uranium enrichment?

).
Japan, 1945. 180,000 deaths (possibly up to 250,000 if you allow for longer term effects) compared to the predicted loss of 2-3 million allied service personnel, and 7-15 million dead Japanese if the war had continued, almost all of which would have been civilians under your definition of the term. I also notice you did not mention the Japanese toll of Chinese civilians.
And lastly, I hear this civilian argument far too often. For those of you who don't know what a civilian is, here's a little conundrum for you: Who is a valid target in time of 'total war', ie World War 2? I'll keep it with an aviation theme:
The person piloting the bomber flying over your city?
The person aiming the bombs in the bomber flying over your city?
The person who loaded the bombs onto the bomber flying over your city?
The person who fuelled the bomber flying over your city?
The person who delivered the bombs to the airfield?
The person who maintains the bomb at the distribution depot?
The person who delivered the bombs to the distribution depot?
The person in the factory who made the chemicals for the bombs?
The person in the mines who made the raw materials?
The person in the farms who planted the food to feed the pilot and all the others?
Who really is a civilian under these circumstances? Except for very young children, just how many people are really NOT involved with that very messy business of making war...?
Right, that's the last post for me for today, someone else take over please...