https://www.theguardian.com/us-news/2020/feb/15/us-defence-secretary-warns-us-alliances-at-risk-from-huawei-5g

Mark Esper says countries using Chinese technology will put intelligence cooperation at risk

The US defence secretary, Mark Esper, warned that US alliances including the future of Nato were in jeopardy if European countries went ahead with using Chinese Huawei technology in their 5G networks.