I was led to understand we were here to fight an enemy.

Other times, they have had to team up to fight a common enemy.

I would fight the enemy even if they were a million.

How do you fight an enemy that lives inside your own head?

They continued to fight the enemy forces, and later local police, for years after the war was over.

They had the resources of a world to fight their enemies.

"I thought we might work together for a change, stop fighting each other and fight the enemy."

It was tough work, he thought, to fight an enemy about which one knew next to nothing.

The weapons were given to him to fight the common enemy at that time.

"Want to see if we can get back to fighting the enemy?"