What is "lightly-armed"

Usage examples of "lightly-armed".

But-unlike his small group of lightly-armed Arabs-the heavy Persian cavalrymen had been willing to hammer the advance guards and press very close to the Malwa main army before disengaging.

But -- unlike his small group of lightly-armed Arabs -- the heavy Persian cavalrymen had been willing to hammer the advance guards and press very close to the Malwa main army before disengaging.

Its warhead was powerful enough to penetrate the frontal armor of a main battle tank, and should have gutted a lightly-armed vehicle like the Ml 13.