The phrase "engaging force" is correct and can be used in written English.
It is used to describe a person or group of people who focus their efforts on a task or problem. For example, "The mayor assembled an engaging force to resolve the city's economic crisis."
North Korean forces were able to cut the battalion into disorganized groups, with L Company engaging forces in the pass and I Company under attack from forces on the north ridge behind them.
But what Jobs triggered was a continuous wave of innovation driven by the engaged forces of the Google/Apple contest.
73rd Battalion suffered 50% losses and the whole of the engaged forces had counted 44 deaths and twice that number injured.
Once more, he is engaging with forces considered hostile, this time across zones as far apart as Afghanistan and Yemen.
Mr. Altschul sounds acutely engaged, the force of his attention giving the album much of its power.
Zapata has carried on his operations south of Mexico City and has been easily accessible, but the farcical army expeditions have never engaged his force.
Late on 28 June, the ships engaged a force of three Italian destroyers.
They were to engage a force of North Vietnamese Army NVAA) troops that had used the area as a staging ground for the Tet Offensive and other attacks.
The South Korean forces engaged the 766th forces around the village's middle school with small-arms fire until noon.
During its time in France, the brigade did not participate as a whole in any engagements, though its infantry and reconnaissance elements did engage German forces.
During its time in France, the headquarters company did not participate as a whole in any engagements, though its infantry and reconnaissance elements did engage German forces.
