Afganistan.

History as shown through the centuries that occupying forces never bring peace.There would have never been peace in Britain if the Nazis had won the last war and occupied Britain and there will never be peace as long as foreign troops occupy Afganistan.
Talk is the only thing that ever brings peace. The only way to bring peace to Afganistan is if you encourage all sides to talk to one another.
If foreign forces stay in Afganistan all that will happen is more and more people, soldiers and civilans will lose there lives.
Violence and fighting are not the roots to peace. Peace will only ever come through peaceful solutions.