United Kingdom Home Secretary Priti Patel has signed off on Julian Assange’s extradition order, paving the way to send the publisher to the United States where he is indicted on unprecedented charges endangering press freedom.

Assange’s father and brother, John and Gabriel Shipton, held a press conference in New York City immediately following the news, in which they announced Assange’s defense team will fight this decision in an appeal to the UK’s High Court.