UK labels Russia top security threat, issues warning on China, and promises to build more nuclear warheads

Russia is Britain’s top security challenge, the UK will build more nuclear weapons and London will expand its presence in the high-tech realms of space and cyberspace, Prime Minister Boris Johnson announced Tuesday in a sweeping review of British military and foreign policy.Russia is Britain’s top security challenge, the UK will build more nuclear weapons and London will expand its presence in the high-tech realms of space and cyberspace, Prime Minister Boris Johnson announced Tuesday in a sweeping review of British military and foreign policy.