Immigration has been an important element of U.S. economic and cultural vitality since the country's founding. This interactive timeline outlines the evolution of U.S. immigration policy after World …

The Taliban insurgency remains resilient seventeen years after U.S.-led forces toppled its regime in what led to the United States’ longest war.

Since Fidel Castro’s ascent to power in 1959, U.S.-Cuba ties have endured a nuclear crisis, a long U.S. economic embargo, and political hostilities. The diplomatic relationship remained frozen well b…

The Gulf of Mexico oil spill disaster involving Britain's BP has direct implications for the environment and economy of at least four U.S. states and could have a lasting impact on U.S. offshore dril…

The quadrennial U.S. presidential nominating conventions are usually dominated by domestic themes. But they have at times been flavored by global economic concerns and national security threats, offe…

Since 1945, many regime leaders and key figures have been brought before domestic and international courts to answer to charges including genocide, corruption, and crimes against humanity, amid a lar…

In March 2003, U.S. forces invaded Iraq vowing to destroy Iraqi weapons of mass destruction (WMD) and end the dictatorial rule of Saddam Hussein. When WMD intelligence proved illusory and a violent i…

Hugo Chávez assumed Venezuela's presidency in 1999 on a populist platform. But critics say three terms under his "socialist revolution" have made the country increasingly resemble an authoritarian st…

The nuclear arms race was one of the most alarming features of the Cold War superpower competition between the United States and Soviet Union. Both sides rapidly expanded their nuclear stockpiles, bu…