This week, senior American officials traveled to Switzerland to deliver President Donald Trump's "vision for a new direction in nuclear arms control."
원문출처 : https://www.cnn.com/2019/07/20/world/us-russia-new-start-nuclear-weapons-analysis-intl/index.html
원문출처 : https://www.cnn.com/2019/07/20/world/us-russia-new-start-nuclear-weapons-analysis-intl/index.html