There may be opportunities for impromptu diplomacy at one of the largest gatherings of world leaders in years.

The U.S. Air Force will increase combat capability in South Korea, temporarily creating a new "super squadron" of F-16 ...

The clash in style between Donald Trump and Pope Francis and their positions come into focus as the president travels to ...

Former U.S. Secretary of State and former U.S. Special Presidential Envoy for Climate John Kerry, who met with Pope Francis at least four times, joins Chris Jansing at the Vatican to discuss the ...