1. Russia has also warned against moving defensive missiles to Turkey's border with Syria. 2. The technology of limited defensive missile shields has not yet been reliably perfected. 3. The Patriots are defensive missiles intended to intercept incoming targets. 4. Pyongyang has said it will not negotiate on its sovereign right to develop defensive missiles . 5. Raytheon, maker of the Patriot defensive missile , has long been a manufacturer of antimissile systems. 6. That treaty prohibits the use of long-range defensive missiles . 7. Pyongyang, however, has said it will not negotiate on its sovereign right to develop defensive missiles . 8. That's the treaty to which Putin said Friday deployment of a defensive missile system would violate. 9. The 700-pound defensive missile is designed to slam into incoming missiles and destroy them on impact. 10. Doing so would require changes in the 1972 treaty with Moscow that bans most long-range defensive missiles .
