The correct question is not this, but the counterfactual: "How many more civilians around the world would have been killed without this country's influence?"

This is almost whimsical in its absurdity.

"I know we've killed millions with torture, cruel sanctions, and pollution - but we had to! Because if we hadn't, where would we all be?!"

A stable middle east, climate change accords, fewer refugees and less pollution. 8 trillion extra dollars to spend on becoming 100% renewable while literally ending homelessness and world hunger. The humanity!

... It's like that scene where Lionel Hutz imagines a world without lawyers. Funny, but sad.

Which is literally impossible to answer, because we don't have access to counterfactual statistics.