Anyone who doesn't do as we order is aiding the enemy.

However, once back with British forces he found himself facing a charge of aiding the enemy.

There are two reasons that "aiding the enemy" is rare.

"What should we do with Deryni who aid the enemy?"

"This is one Deryni who will aid the enemy no more!"

The most serious charge is "aiding the enemy," a capital offense.

Ideally, the military should withhold only data that aid the enemy.

They don't want you out here, aiding the enemy.

Do you expect us to broadcast information that could aid the enemy?

Now the only victory left was to not aid the enemy.