countries have already announced or are working on plans to welcome British travelers back within months. borders will remain closed to most Americans — even those who are vaccinated — until the bloc lifts its travel restrictions. President Biden also reimposed an entry ban on most European travelers in January, which could become another obstacle, as E.U. The German and French stalling has frustrated officials in many southern European countries. Greece, Cyprus and other nations recently announced plans to set up bilateral agreements unless an E.U.-wide solution can be found.