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

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.

The Russian army occupied the area.

He is being trained as a war dog.

My house is in Yamaguchi County.

He enlisted in the navy.

He enlisted in the army.

He is a member of the air force.