Huawei faces ban in Britain, uncertainty swirls over timing, extent

Prime Minister Boris Johnson is set to ban Huawei from Britain’s 5G network on Tuesday in a momentous decision that will delight Washington, dismay Beijing and signal the end of a two-decade long partnership with the country’s biggest mobile operator.

The United States has pushed Johnson to reverse his January decision to grant Huawei a limited role in 5G, saying the Chinese company is a security risk.