Apply for an electronic travel authorisation (ETA)

Eyes on

What an ETA is, who can get one and how to apply before coming to the UK. Americans will have to apply for ETA to enter the UK surrendering data that can be accessed up to two years after departure. The UK government is spying on American people in an attempt to censor free speech and you have to pay for the privilege.

https://www.gov.uk/guidance/apply-for-an-electronic-travel-authorisation-eta