The U.S. Navy’s dominance of the world’s oceans has made it an indispensable foreign policy tool as well as a guarantor of global trade, but a mix of challenges is raising difficult questions about i…

The separation of powers has spawned a great deal of debate over the roles of the president and Congress in foreign affairs, as well as over the limits on their respective authorities, explains this …

China is believed to spend billions of dollars to boost its international image, but it has yet to see a marked return on its investment in soft power.

The winner of the presidential election this spring will heavily influence how France approaches foreign and domestic issues, including its future with the European Union.