If I become a dual citizen will it affect my U.S. citizenship?

A person who is automatically granted another citizenship does not risk losing U.S. citizenship. However, a person who acquires a foreign citizenship by applying for it may lose U.S. citizenship. In order to lose U.S. citizenship, the law requires that the person must apply for the foreign citizenship voluntarily, by free choice, and with the intention to give up U.S. citizenship. The U.S. Government does not encourage dual nationality because of the problems it may cause. Claims of other countries upon dual-national U.S. citizens can place them in situations where their obligations to one country are in conflict with the laws of the other. In addition, their dual nationality may hamper U.S. efforts to provide protection to its citizens when they are abroad, especially in the country of their other nationality.