He has a shotgun.

This clock is running using a mainspring.

The police used tear gas against the demonstrators.

He found the magic bullet to solve the problem.

This area has a lot of unexploded ordnance left over from the war, so caution is necessary.

Danma is my best friend.

He was promoted to a private first class.

Everyone acknowledges that he is a true brave soldier.

After graduating from the military academy, he joined the army.

He participated in the war as a military volunteer.