A flicker of motion on the course ahead of the main force caught the sergeant's eye.

Gillespie dashed ahead of the main force with a single troop of about twenty men.

Fornal turned his mount as if to ride back to Syskar ahead of the returning force.

In cavalry terminology, the men scouting ahead of the main force were said to be "riding point".

Standard tactics prescribed the use of light tanks to reconnoiter ahead of the main force.

The two Royal Marine commandos landed ahead of the main force at 03:00 hours.

No General pushed unsupported skirmishers too far ahead of the main force.

Twelve men of 3rd recon led the way, starting out ten minutes ahead of the main force.

Riders from the extraordinarii reported back each day, scouting far ahead of the main force.

Fourteen Scouts, made up of two teams, would leave 24 hours ahead of the main force, to survey the camp.