The peace accords signed by the FARC and the Colombian govenment on September 26 are momentous, but they're only the beginning of the path to peace.
Once seen as a diplomatic victory, the nuclear deal of 2015 is now perceived as a failure by conservatives who reject President Rouhani's message of moderation as economic recovery remains elusive.
We know how to prevent gender-based violence, and that we must respond to survivors' needs. The challenge is in making it happen.
The foul-mouthed, tough-talking president of the Philippines is ironically a pragmatist on foreign policy.
More than 44% of Mexican women face violence in their homes. Some of them become asylum seekers in the United States.
Russia is dragging its feet on climate action - and risks being left out in the cold.
If women aren't given their full rights, they're less likely to believe in democratic institutions.
Lee: 'Business will be far from usual in a world of four, five or six degrees of warming.'
Slavery is making a comeback, thanks to Islamic State and Boko Haram. But the UN can help.
As military organisations become less oriented towards violence, the traditional, aggressive, warrior-like culture of the military has to be balanced with new task requirements.
Lucky Luciano, Al Capone and FDR walk into a Democratic convention...
Mozambican civilians are again bearing the consequences of war between the government and opposition party Renamo. How has Renamo mobilised popular support for a new uprising?
The South African military's capabilities for socio-economic development are questionable, even in its own country. The force is in critical decline, but is expected to aid humanitarian efforts.