Question: What Report reported a 40% decrease in the number of armed conflicts being waged around the world once the state of geopolitical tension after World War II between powers in the Eastern Bloc and powers in the Western Bloc came to a close?
Sentence (from "Cold War"): The Cold War was a state of geopolitical tension after World War II between powers in the Eastern Bloc (the Soviet Union and its satellite states) and powers in the Western Bloc (the United States, its NATO allies and others).
Relevant evidence: Yes