What is one of the promises made when becoming a United States citizen?

One of the promises made when becoming a United States citizen is to serve in the U.S. military if needed. This commitment reflects the responsibilities that come with citizenship, particularly the duty to protect and defend the country if called upon. It underscores the notion that citizenship is not just about rights and privileges but also about shared responsibilities, especially in regard to national security and defense. This promise is part of the Oath of Allegiance that new citizens take, which emphasizes loyalty to the United States and readiness to support it, including in times of war or conflict. This aspect distinguishes the pledge of citizenship in the United States from many other rights and responsibilities that citizens have.