Hillary Mann Leverett,who helped negotiated a cooperation deal with Iran over Afghanistan from 2001 to 2003, says she now believes Washington must seek a far wider accord with Tehran to prevent serio…

Secretary of State Hillary Clinton’s seven-nation trip to Africa will highlight U.S. security concerns from Somalia to Nigeria and expand on efforts to engage leading African states on governance and…

Allan Gyngell, a former Australian diplomat, says there is concern in Australia and East Asia that the next U.S. president might retreat from the United States’ support for free trade.

Martin S. Indyk, who served as ambassador to Israel in the Clinton presidency and advises Sen. Hillary Clinton’s campaign, says it’s crucial for President Bush and Secretary of State Rice to become m…

Thomas W. Lippman, a specialist on Persian Gulf security, says U.S. Secretary of State Hillary Clinton’s warning about a U.S. "defense umbrella" to protect regional states from any Iranian nuclear ar…