The statement "An activity a policemen or soldier can do is enforce laws via force" is true because A policeman is an agent of a government. A soldier is an agent of a governement. An agent is a person who acts for another person. A government is an organization of people. A government has power to force people to conform to laws enacted by the government.  The agents of the government force people to obey the laws of the government.  If the laws are not fair, people will resist the effort to enforce the law.