What is one promise made when becoming a United States citizen?

When a person becomes a United States citizen, one of the key promises made is to defend the Constitution and the laws of the United States. This oath of allegiance signifies a commitment to uphold the foundational principles and values upon which the nation is built. By promising to defend the Constitution, citizens affirm their dedication to the rule of law, the democratic processes, and the rights and freedoms it guarantees.

In contrast, the other options do not accurately reflect the requirements or promises associated with U.S. citizenship. Respecting all countries, while commendable, is not a formal promise made during the naturalization process. Working in government is not a requirement or expectation for citizenship, as many citizens may choose a variety of paths in civilian life. Additionally, serving exclusively in the military is not mandated for citizens; military service is a voluntary choice rather than a citizenship obligation.