Carrier battle group
With the construction of the large "supercarriers" of the Cold War era, the use of each carrier in a single formation was brought back.  During this time, the main role of the CVBG in battle with the Soviet Union would have been to protect Atlantic supply routes between the United States and its NATO allies in Europe.  The Soviet Union had no large carriers of its own. Aircraft carriers fighting each other would have been unlikely. A main mission of the Soviet Navy's attack submarines was to track every allied battle group. If war started, their mission was to sink the carriers.  Knowing this, the CVBG put much of its resources in its own anti-submarine warfare mission.