The Democratic and Republican presidential contenders have begun defining their approach to major foreign policy issues as they jockey for position in their parties’ primaries.

On Tuesday, Wikileaks released a huge cache of documents it said were descriptions of CIA cyber tools used to break into smartphones, computers and internet-connected TVs. Wikileaks says the document…

U.S. President Donald J. Trump’s first visit to Beijing was an exhibition of mutual flattery. China rolled out the red carpet for what it termed a 'state visit plus,' replete with unprecedented pomp …

President Trump goes to Europe this week. Its leaders are bracing for the impact.

This is the first time since World War II that there may be no cooperative way out.