The PhD is a doctoral degree, specifically called a "doctor of philosophy" degree. This is misleading because PhD holders are not necessarily philosophers (unless they earned their degree in philosophy!). That said, PhD recipients are able to engage in thought experiments, reason about problems, and solve problems in sophisticated ways.
Education in the United States is mainly provided by the public sector, with control and funding coming from three levels: state, local, and federal, in that order. The common requirements to study at a higher education level in United States will include your admissions essay (also known as the statement of purpose or personal statement), transcript of records, recommendation/reference letters, language tests
Request Information Doctoral Programs in Law and Regulations in Middlesex in USA 2017
The Doctor of Philosophy (PhD) Program in International Relations has a comparative advantage in training scholars to engage in cutting-edge, problem-driven, interdisciplinary research in international affairs and political science. Our doctoral research not only contributes to academic literature, but also to resolving pressing policy problems. [+]