I cannot really think of any modern battle which has resulted in peace, if the people of Iraq want peace and democracy they will get it, problem is they never had it and you cannot give democracy to people.
Afghanistan the Russians tried to get this country and failed, the Russians used a dam sight more military then the UK or USA and they will fail, because the people want the old ways, it is natural to them, OK the Teleban are not the norm, sadly these people have lived like this for hundreds of years.
To day the UK has brought tanks out of mothballs, these tanks have been laying in yards and museums since 1960, they will have new engines fitted and be moved to both Iraq and Afghanistan, that will tell you how bad it has become.
Israel was formed after the war the UK decided we needed a home for all the Jews which the UK did not want, so they helped form Israel, the USA then armed this country while not allowing others to arm, now we have a super state in the middle east. Iran is a country of Fanatics we all know this, yet they are big enough and powerful enough to have a nuke, and mad enough to use them, but who can blame them.
In the UK Blair goes on about other countries not having any Nukes he says they are not needed, the next words out of his mouth are the UK need a nuclear arms to keep the peace, what does he think the Welsh are going to invade.
The time has come for the bigger nations to stop and think before invading a country, Iraq will return to the same old ways, the USA place Saddam in power and are doing the same again, once the US and the UK leave we will have infighting, and the president of Iraq will refuse to step down, and here we go again.
War is not the answer what is well leave them to it might be better. as for Israel until others can match the army they have Israel will use might to regain more land.