Is nation state an example of power?

Yes, a nation-state is an example of power as it embodies the authority and sovereignty to govern a defined territory and its population. It wields political, military, and economic influence both domestically and internationally. The nation-state's power is manifested through its ability to create and enforce laws, conduct foreign relations, and maintain order within its borders. Additionally, it can project power through diplomacy, military might, and cultural influence on other states.