Which promise relates to loyalty as a US citizen?

The promise that relates to loyalty as a US citizen is centered around the obligation to obey U.S. laws. This pledge reflects a fundamental aspect of citizenship, where individuals commit to uphold the laws and principles that govern the nation. By adhering to U.S. laws, citizens express their loyalty to the country, supporting its legal framework, institutions, and the rights and responsibilities it enshrines.

While obeying state laws, supporting local governments, and serving the President all involve aspects of civic responsibility, they do not encapsulate the core promise of loyalty as directly as the commitment to obey U.S. laws. U.S. laws create a uniform standard for all citizens and ensure that rights and responsibilities are consistently applied across the nation, serving as a foundational element of citizenship and loyalty to the United States as a whole.