Find out from him all you can about the enemy.
And indeed, he knew something about their enemy that would probably help them.
But whatever action it takes should tell us something about our enemy.
There's never been a time when one side knew so much about its enemy.
"There is much we need to know about our new enemies."
"The more ways you can find out about the enemy, the better."
I think that's best, until we know more about our enemy.
In his first speech all he did was talk about enemies.
Is it wrong to learn about your enemy, and in return, to teach?
We do not mind a bit lying about our enemies.