The United Nations’ top leadership position has broad authority to steer the organization’s agenda, but its impact has varied widely since 1946.

Kim Jong-un hopes a summit with President Trump will lead to sanctions relief, while experts disagree over whether increased pressure would push Pyongyang toward denuclearization.

The role of the Federal Reserve has transformed in the past decade, as it has deployed trillions of dollars to boost the U.S. economy while expanding its regulatory oversight of the nation’s financia…

The U.S. government responds to scores of disasters each year, coordinating closely with state, local, and foreign partners. However, more frequent and severe storms, fires, and floods are straining …

Hobbled by foreign interventions, political instability, and natural disasters, the former French colony has long suffered from underdevelopment.

U.S. strategic and tactical nuclear weapons on land, in the air, and at sea, will undergo costly and extensive modernization in the coming years.

The costs of hosting the Olympics have skyrocketed, while the economic benefits are far from clear. This has led to fewer states interested in playing host and a search for options to lighten the bur…

The Federal Bureau of Investigation has been reoriented toward counterterrorism in recent years, but continues to face charges of overreach.

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 …

The Colombian government and FARC rebels have signed a historic peace agreement that charts a path to sustainable peace after decades of civil war.