Shamima Begum, who left the UK at 15 to join the Islamic State group in Syria, has lost her bid to challenge the revocation of her British citizenship. The UK Supreme Court ruled that her appeal did not raise an arguable point of law, upholding previous decisions by lower courts. Begum, now 24, had her citizenship revoked on national security grounds in 2019 by then-Home Secretary Sajid Javid. Her legal team argued that she was a victim of child trafficking and should have been allowed to address the Home Secretary before her citizenship was removed. However, the courts prioritized national security over these considerations. Begum remains in a Syrian refugee camp and retains Bangladeshi citizenship through her mother.