3 Verbs to Use for the Word enforcing

Is it so great a sin, to have had courage and conduct enough to attempt the enforcing of that ideal, in the face of the prejudices of a whole nation?

The moral is clear and needs no enforcing.

The painful intelligence received yesterday enforces upon me the sad duty of announcing to the Executive Departments the death of the Secretary of State.

3 Verbs to Use for the Word  enforcing