http://h2zkj5xeycxb2esnyqeabuuo6ui6jlkdb72qjfi2hu3y3h5ilpmjphid.onion/wiki/Visas/index.html
Visa process http://www.ukvisas.gov.uk/ gives information for each country, including the information that needs to be provided to apply for a visa, and where it should be sent. We can provide an invitation letter to any DebConf attendee. This may be useful for visa purposes, or for showing to your own country's officials.
In addition, we can provide a visa sponsorship letter to attendees to whom we are giving food/accommodation/financial support.