Jair Bolsonaro has vowed to overhaul Brazil’s economy and align the country more closely with the United States, with uncertain implications for its relations with China.

The United States and Russia are at odds on so many issues that the upcoming summit could convince their two presidents to give up on better relations and accept estrangement.

The conference in Poland will be a major test of the world’s collective political will to fight global warming. Following through on promises made in Paris will not be easy.

A collapse of this Cold War–era INF treaty, which many believe has favored the United States, could unleash a new age of nuclear weapons competition with Russia.

Congress is considering a bill that could punish countries for artificially boosting oil prices. What could that mean for warming ties between Russia and Saudi Arabia?