Four experts contribute their thoughts about the role of the United Nations and the future of global governance in this Expert Roundup.

President Obama’s first National Security Strategy departs from Bush administration doctrine by redefining the war against terror groups and embracing multilateralism, and may expect too much from gl…

Upcoming negotiations are shadowed by Iran’s increasing uranium enrichment capabilities. Four nonproliferation experts provide a path for resolving the intensifying nuclear dispute.

In his address to the nation on Tuesday, U.S. President Barack Obama laid out a strategy he says will turn the tides in the faltering Afghan war effort. Five experts analyze his approach.