There was no steam cloud to betray the position of the gun to the enemy.
They might betray themselves to the enemy with some incautious action.
Their location was betrayed to the enemy by the large number of messengers who converged there from all directions.
Now none of us can betray it to the enemy.
Brown would be obliged to betray Nepe to the enemy.
"If I do not kill you, you will betray our last source of resistance to the enemy?"
I would never betray my country's trust in me to the enemy.
They will let us camp here for the night, and will not betray our presence to the enemy, but we must do them a service.
If we muster in thousands, she will hear of it and betray us to the enemy.