The UK and EU are introducing online travel authorizations that will apply to visitors who have not needed a visa previously.
Travelers to the UK will be required to apply online for an Electronic Travel Authorization (ETA) before departing for the UK. Please visit the following website for information on when this requirement will start by country and for a link to the online application: https://www.gov.uk/guidance/apply-for-an-electronic-travel-authorisation-eta.
Travelers to EU countries who have previously not needed a visa will soon be required to apply online for authorization. This requirement is expected to start during the first half of 2025. Travelers will need to apply online for authorization prior to travel. More information is available here: https://travel-europe.europa.eu/etias_en.