This decision has the force of law.

Unity is strength.

He accepted willingly or not.

It is easy to succumb to the dark side of the Force.

By force of circumstances, he had to adapt to the situation.

He succeeded by his own efforts.

One should never force someone to do something against their will.

The armed forces defended the city with courage.

You always force the door when it's stuck, but you need to be careful.

The doctor used forceps during the delivery.