WikiLeaks' founder Assange vows to fight extradition from UK to United States

FILE PHOTO: WikiLeaks founder Julian Assange is seen in a police van, after he was arrested by British police, in London, Britain April 11, 2019. REUTERS/Henry Nicholls

LONDON (Reuters) -The wife of Julian Assange vowed to fight using every possible legal avenue after British Home Secretary Priti Patel on Friday approved the WikiLeaks' founder's extradition to the United States to face criminal charges.

Assange is wanted by U.S. authorities on 18 counts, including a spying charge, relating to WikiLeaks' release of vast troves of confidential U.S. military records and diplomatic cables which Washington said had put lives in danger.