We are conducting training to devise strategies against hypothetical enemies.

The enemy general is approaching our camp.

Enemy troops are approaching our position.

He experienced his first encounter with the enemy on the battlefield.

He encountered the enemy on the battlefield.

Every Sunday, we look forward to hearing the beautiful singing of the choir at the church.

The fire brigade quickly extinguished the fire.

The regiment of military policemen is working to maintain public order in the city.

The group of demonstrators is conducting a protest in front of the city hall.

He is a member of the U.S. Marine Corps.