Thach weave
An aerial maneuver developed by John S Thach soon after America's involvement in WW2. It involves two fighters, originally F4 hellcats, flying side by side, and when an enemy, originally an A6M Zero, attacked one of them, The fighter that got attacked and their wingman would fly in a rolling scissors, allowing The plane that was not targeted to shoot down the enemy.
The Thach weave is what made America the world's dominant air power, and it still is to this day.