He has the ability to control the command zone.

In Magic: The Gathering, you can place cards in the command zone.

This area is the focus of our research.

He is in command of the team.

He has the ability to command the troops.

He believed that his house was possessed by a vengeful spirit.

There is a new projector in my office.

His absolute territory is only his room.

He can completely control that robot.

He completely gained control of the robot.