The Mongols may as well have been an extinction event as they were that violent. They swept out of the Montol steppe, took over China, Korea, down to South East Asia aaaaaaaallllllll the way over to Poland.
The only reason Europe exists as it does today, is because the Mongols stopped invading. Weren't repelled. Weren't held off. They stopped because the Great Khan back east had a heart attack and Ogedai had to go back to participate in the funeral & elect a new Great Khan.
If you listen to podcasts, I highly recommend listening to Dan Carlin's Hardcore History: The Wrath of the Khans. https://open.spotify.com/playlist/1nLmHLvEaRCJ08XueJTe17
It's about 8 hours of content on the Mongols and you're gonna learn so much. It's great!