Name a successful negotiation in history that has helped to prevent war?

-Apologies if the question has been worded terribly, I just need a simple answer. You can go into detail if you feel like it.Negotiation between Khrushchev and Kennedy to prevent the Cuban missile crisis to explode, remember the Cubans agreed to the establishment of nuclear arms within their borders as a defense strategy since they lived in constant threat from an American invasion.



A really famous one was the Hittite-Egyptian peace treaty, probably the oldest peace treaty, it was a treaty that happened after the battle of Kadesh back in some time between 1300bc and 1200bc, it happened after a brutal battle but prevented total war to happen between the two supper powers of the day.



An infamous one is Hitler's negotiation with Czechoslovakia to surrender, which they did from fear of being invaded by the full force of Nazi Germany, this prevented war between them but eventually when Germany invaded Poland in 1939 Britain and France couldn't keep going with their appeasement policy which was meant to prevent war and declared war on Germany starting WW2.Gandhi and his people refused to fight the British as they threatened to take over India. This gained respect and put the British in a tough position of fighting a voluntarily defenseless army. Britain let India remain control of it's land.