US citizens visiting parts of Europe will need authorization from the European Union come 2021.
원문출처 : https://www.cnn.com/travel/article/us-citizens-need-visas-to-visit-europe-in-2021/index.html
원문출처 : https://www.cnn.com/travel/article/us-citizens-need-visas-to-visit-europe-in-2021/index.html