Which of the following is a power that belongs to the states?

The power that belongs to the states is providing safety, which includes responsibilities such as establishing and maintaining fire departments. This is an essential function of state and local governments, demonstrating their role in ensuring the well-being and safety of their citizens. State governments have the jurisdiction to create various public safety departments that address community-specific needs, including firefighting, policing, and emergency services.

In contrast, declaring war and creating an army are powers reserved for the federal government, as these actions pertain to national defense and international relations. Similarly, making treaties is also a power exclusive to the federal government, specifically the President and the Senate, as it involves managing relations with other countries. These distinctions highlight the division of powers established by the U.S. Constitution, differentiating responsibilities that belong to state governments versus those reserved for the federal government.