The treaty, which took effect in 2014, builds on efforts to protect women and girls from violence since the 1990s. Some nations say they oppose it based on sovereignty concerns.
The military delivered more than 88,000 tons of packages and letters last year and must now plan for a possible disruption.
Many of the questions asked in Versailles 100 years ago appear to be resurfacing today in a U.S. hostile to multilateralism.
David Malpass now oversees one of the most important international organizations set up after World War II.
Not surprisingly, the patterns of American and European leadership have been an affront to non-Western nations.
The non-binding deal tries to solve some of the polarizing but age-old issues surrounding people crossing borders.
Precipitated by unrestrained nationalism, the immense tragedy of a four-year global war laid the groundwork for the post-World War II era of relative concordance among nations.
With the U.S. reversal, Iran's planned economic opening to the West in exchange for curbs on its nuclear ambitions depends on its European, Russian and Chinese trading partners.
Three times a year, a little-known panel of human rights experts gathers in Geneva and New York with a monumental task: upholding people's civil and political rights.
Diplomats registered protest, outrage and regret that Syrian President Bashar Assad's government would preside over the forum, saying it has no credibility or moral authority.
Reporters Without Borders said hatred for the press was "steadily more visible” in 2018 among 180 countries it monitors each year and political leaders' hostility towards news media is no longer limited to authoritarian countries.