both wings; both flanks
Refers to the left and right wings of an aircraft, bird, or military formation. Also used figuratively for two supporting elements of an organization.
Engines are mounted on both wings of the aircraft.
A plan was made to attack both flanks of the enemy forces.
He and she are the two people who carry the company on both flanks.
The eagle spread both wings and flew off into the sky.
The army decided to attack the enemy from both flanks.