President-elect Donald J. Trump threatened to impose tariffs on countries that seek to replace the dollar in trade or undermine its global reserve currency status.

Days ahead of the U.N.’s global negotiations on climate change, China and other developing countries said trade restrictions should be part of the talks.

At a meeting of emerging economies, Vladimir Putin positioned himself as a respected and powerful leader, ignoring the condemnation he receives from the West.

The Russian leader hopes to use the meeting of the so-called BRICS group, which includes China and India, as a counterweight to the West.