Pascal Lamy, former director-general of the World Trade Organization, told CGTN's Tian Wei in an exclusive interview that Europe must pay for U.S. protection through budgets or tariffs, with no other options currently available. Lamy states that Trump's effort to monetize American protection is turning transatlantic relations into a medieval-like system of lords and barons. He also believes that until Europe strengthens its economy, technology, and defense, it will remain vulnerable.