https://www.mercurynews.com/2019/03/08/americans-heading-to-europe-will-soon-need-a-visa/

Those carefree days of jumping on a plane for Paris with nothing more than a suitcase and your passport will soon be over.

Starting in 2021, most European Union countries will begin implementing a new travel visa as a requirement for U.S. citizens and citizens from 59 other countries to enter, NBC Bay Area is reporting. The European Travel Information and Authorization System’s (ETIAS) website, which offers full details about traveling to Europe, cited concerns over illegal migration and terrorism as the reasons for the increased security measures.