Sorry guy but there is no comparison.
There were numerous reasons to go into Iraq,one of which was to light the fire of democracy and civilized existence in a region that has been a burning cauldron of barbarism for as long as recorded history.
It will take a long time to work if it is going to but with events of the last decade it is worth a try.
It is somewhat unfair to characterize it as "adventurous" or "idealistic".
There is a solid motive.
Hardly, you don't understand Arab culture. I do, having lived among them. They don't take kindly to foreigners imposing governments upon them, whether they be Ottoman, British or American. Also, Iraq is an artificial country that only held together because of Saddam's tyranny.
The Brits couldn't control it in the 1920s.
Besides what strategic blow did the invasion of Iraq give to global terror. Having siezed Tehran with help from Iranian students who hate the mullahs would have done a far better job at that.
I think the war in Iraq has been nothing but naive stupidity.