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.

The Russian army occupied the area.

He is being trained as a war dog.

The trailing edge of this airplane has a very unique shape.

After school, we study at the library.

He suffered a minor contusion on his occiput.