Numerous competing theories are likely to surface about the demise of the Russian paramilitary commander—all of which help explain Vladimir Putin’s Russia.

The impeachment of President Pedro Castillo Terrones marks Peru’s latest political crisis. As violent protests extend into their second week, what’s in store for the Andean nation?

Tear gas is banned in international warfare, and its health risks are well-documented. Still, it remains a crowd-control agent of choice for police worldwide.

Scientists say the rain forest is approaching a critical tipping point at which the damage is irreversible.

Colombia’s election could deliver the country’s first left-wing president, an outcome with the potential to transform Bogota’s approaches to economic policy, peace negotiations, and foreign relations…