U.S. President Donald Trump's worldwide campaign to blackball Huawei Technologies Co. is looking like a failure.

Attempts to persuade other governments to exclude Huawei equipment from the next generation of superfast mobile networks have hit a wall — even among close allies. So far, only a handful of countries, including Australia and Japan, have joined his call to boycott the Chinese company.

Not a single European nation has done so, not even the United Kingdom, triggering a scolding from U.S. Secretary of State Mike Pompeo in London last week. "Now is the exact opposite time to go wobbly," he said, invoking the famous locution that Margaret Thatcher, the U.K. prime minister between 1979 to 1990, used to spur the U.S. into sending troops to Kuwait after Iraq invaded it in 1990. "Would she allow China to control the internet of the future?'