The phrase "adequate force" is correct and usable in written English.
It can be used in contexts where you are discussing the sufficiency or appropriateness of force applied in a situation, such as in legal, scientific, or physical contexts.
Example: "The officer determined that the use of adequate force was necessary to subdue the suspect without causing serious harm."
Alternatives: "sufficient force" or "appropriate force".
PREMIER FOR STRONG ARMY He Promises to Maintain an Adequate Force, Newly Armed, While Decreasing Divisions.
They stick to the safer ground of figuring an adequate force to handle very specific, immediate assignments.
To achieve this, an adequate force field and proper termination strategies are necessary.
They have difficulty in initiating movements, including walking, and they cannot put adequate force into fast movements.
In the 1990's, the United Nations tried to give Afghan farmers incentives not to grow opium, but the plan was not backed with adequate force.
Whatever its ultimate contours, our newest empire must be backed up by adequate force if it is to be a going concern.
Kościuszko was unable to concentrate adequate forces in time, and he suffered his greatest defeat at Maciejowice, where he was wounded and taken prisoner.
The offensive in Marja is intended as a showcase where the strategy can work, and the coalition says it has adequate forces now to do that.
While the arrangement led to future decades of fireside tales about daring, lightning strikes by Confederate cavalry veterans, it also stripped Pemberton of adequate forces for reconnaissance.
"We do not have adequate forces to carry out our missions" if operations in Afghanistan "continue at their recent past and current pace," said Admiral Blair, who recently retired from his command.
But the other point that all the planners made from the very beginning was that without adequate forces after victory you cannot prevent the inevitable reactions to a war, which includes looting and everything like that.
