The New York Times reports that Jeremy Hunt, the British foreign minister, arrived in Washington last week for a whirlwind of meetings dominated by a critical question: Should Britain risk its relationship with Beijing and agree to the Trump administration's request to ban Huawei, China's leading telecommunications producer, from building its next-generation computer and phone networks? Britain is not the only American ally feeling the heat. In Poland, officials are also under pressure from the United States to bar Huawei from building its fifth generation, or 5G, network. Trump officials suggested that future deployments of American troops — including the prospect of a permanent base labeled "Fort Trump" — could hinge on Poland's decision. And a delegation of American officials showed up last spring in Germany, where most of Europe's giant fiber-optic lines connect and Huawei wants to build the switches that make the system hum. Their message: Any economic benefit of using cheaper Chinese telecom equipment is outweighed by the security threat to the NATO alliance. Over the past year, the United States has embarked on a stealthy, occasionally threatening, global campaign to prevent Huawei and other Chinese firms from participating in the most dramatic remaking of the plumbing that controls the internet since it sputtered into being, in pieces, 35 years ago.

The Wall Street Journal reports that Canadian Prime Minister Justin Trudeau fired the country's ambassador to China after he sparked an uproar by saying a senior Huawei Technologies Co. executive arrested at U.S. request had a good case to fight extradition. Mr. Trudeau on Saturday said "I asked for and accepted John McCallum's resignation" as Canada's chief envoy in Beijing. In the statement announcing his dismissal, Mr. Trudeau thanked Mr. McCallum for his work over the years as an influential lawmaker. The statement didn't offer a reason for the dismissal. On Sunday, a Liberal government lawmaker, Mario Mendicino, told CTV Network that Mr. McCallum's remarks over the past week "were both unhelpful and did not reflect the position of the government. That's why the prime minister asked for his resignation."