Tariffs have been applied over the years to protect homegrown industries and target competitors who are seen as using unfair trade practices. They impose costs on both importers and exporters and had been in decline until the recent U.S.-China trade war.

One of the world’s most-watched news networks is at the center of a geopolitical rift between a Saudi-led bloc and the broadcaster’s funder, Qatar.

Military power has reemerged as an important component of Russian foreign policy, which some believe aims to reestablish Russian hegemony in the region.

The Muslim separatist group, based in the Xinjiang province in northwest China, presents a heightening security challenge for Beijing.