I assume that the enemy is closely watching the basin.

The enemy on the other side of the border was watching with interest, waiting to intervene.

The enemy could do nothing but watch our side of the gorge.

Nobody else will be here, and the enemy always watches for his chance.

The enemy would certainly watch Onus' grave for hours - but how many?

You must always behave as if the enemy is watching.

"The enemies of the alliance are watching very carefully indeed."

And what was more-if their enemies were watching the door, they'd never see him leave.

I think now,' said Strider, 'that the enemy has been watching this place for some days.

The danger is still there, and our enemies are watching us.