Are Call of Duty Black Ops and Modern Warfare in the same universe?

Call of Duty: Black Ops Cold War's campaign plays games with history - Polygon

Will There Be a Call of Duty Having Modern Warfare's Task Force 141 Taking On the Black Ops Characters? - EssentiallySports

The History of Call of Duty - Evolving Past Medal of Honour and Battlefield - HubPages

My take on the timeline : r/blackopscoldwar

Introducing the Lore of Modern Warfare: Zombies. Welcome to Operation Deadbolt

Here's How Call Of Duty: Warzone Works In A Call Of Duty: Black Ops Cold War World - Game Informer

In what order should you play the Call of Duty games? - Quora

Launch Comms: Prepare for Call of Duty: Modern Warfare III — Everything You Need to Know

Call of Duty: World at War, Call of Duty Wiki

Call of Duty: Black Ops (Video Game 2010) - IMDb