But the Chinese screening forces withdrew with the American advance.

During withdrawals, the cavalry often served as a screening force for the main units.

We could use my army as a screening force to the east, but I doubt we would hold them off for long.

When the timing is right, I want you to go in behind a screening force and see if you can succeed.

"Roderick will be in command of the screening force we're providing, sir."

Just the screening force on the berm, he saw, with the three heavy brigades in position to counter a penetration.

The attack started on the morning of October 28, pushing back the Greek screening forces.

The screening force was made quite visible in the infrared bands.

Our two other armored divisions were pre-positioned behind the screening force.

Some 500 of King Tofa's warriors marched ahead as a screening force.