He was working as a military surgeon.

He received training in the navy and army.

He belongs to the defense force.

The Salvation Army is conducting charitable activities around the world.

This decoy army strategy was used to confuse the enemy.

In a historical context, puppet armies were often manipulated by major powers.

He fought as a soldier in the Union Army.

He is highly respected as a military commander.

The Wei army conquered the region.

He is receiving training as a member of the reserve troops.