If you speak of the western world, the main reason for peace is the construction of the european union, creating much more cooperation between countries that had always been fighting each other.
US foreign policy is not driven by peace, freedom or whatever propanganda created to have people's support but by self-interest. It's the same for any country.
I'll buy that argument as long as Americans stay inside their own borders. When you choose to enter another country you are subject to their laws whether you agree with them or not. Afghanistan has signed on to the ICC and the activities being investigated took place in Afghanistan.
Having said that I don't expect US policy to change on this issue regardless of who wins the next election. Letting US soldiers be tried for war crimes is bad politics.
When a US citizen is in another country, they are under the power of the courts of that other country. Why is this so hard to understand?
The US military members, when in Afghanistan, are subject to Afghanistan courts jurisdiction—one of those courts is the ICC because Afghanistan gave the ICC jurisdiction by signing the treaty.
When the CIA operatives were in Italy they were under the jurisdiction of the Italian courts and were thus so convicted:
* https://en.wikipedia.org/wiki/Abu_Omar_case
If you do not want to be under the jurisdiction of non-US courts then do not leave the US. Once you step over the border you have to follow the rules of the other country.
Have you had a look at American foreign policy last eight decades?
> and if you don’t like it start building a military to rival ours.
Yeah, that sounds totally like what peace and democracy loving entity would say.
The highest court in the US is the supreme court and every court any of us can be subjected to is under it. The ICC has no sovereignty over the US. Our foreign policy with regards to international law is to support it having sovereignty over others but not ourselves, the world peace enjoyed for the past eight decades or so is a direct result of American hegemony and if you don’t like it start building a military to rival ours.
There is a power imbalance on purpose which results in a little injustice and a big lack of armed conflict.