US wants new nuclear weapons to counter Russia but says there is no arms race

Washington (CNN)During a visit to US Strategic Command last week, Secretary of Defense Mark Esper oversaw a "table top" war game exercise where Russian military forces used a "tactical" nuclear weapon against NATO territory during a conflict in Europe, prompting the US to launch a retaliatory nuclear strike. "The scenario included a European contingency where you are conducting a war with Russia and Russia decides to use a low yield limited nuclear weapon against a site on NATO territory and then you go through the conversation that you would have with the Secretary of Defense and the President ultimately, to decide how to respond," a senior Department of Defense official told reporters...