China

The U.S. says it may stop sharing intelligence with Germany if it adopts Chinese firm Huawei's 5G technology. But the threats haven't swayed Germany, which says it can set its own security standards.

Canada is under pressure from the two rival powers over the Meng Wanzhou extradition case.

Last year, China drastically cut back its imports of plastic waste to recycle. Now the U.S. and other wealthy nations must figure out what to do with their discards.

China's government plays a large, powerful role in how its businesses operate — giving them preferential treatment over their rivals. That's a big sticking point in U.S.-China trade talks.

The U.S. Trade Representative has spent his career warning about the problems and perils of global trade. Now, as the chief U.S. negotiator with China, he's in a position to do something about it.