Lee had a question with Yuri's story. It was about the weapons that defeated the angelic race.

"I... honestly do not know, Lee." The Russian answered. He had been also been pondering about that since he joined the Revolution. All he could do was speculate. "Perhaps humanity, or a small part of it, has foreseen your arrival and developed countermeasures for it. Or maybe they secretly developed new weapons and found the perfect test subjects when you came. I really do not know, I'm sorry."