MOSCOW, May 5 (UPI) -- On May 2, the foreign ministers of Russia, China, the United States, Britain, France and Germany met in London to discuss a diplomatic solution to Iran's nuclear problem.

Sergei Kislyak, a Russian deputy foreign minister who has attended all the meetings on ballistic missile defense and Iran's nuclear problem, said before the meeting they expect progress from each such meeting.

The United States is developing a missile defense system in Europe to counter the Iranian missile threat, and therefore progress on Iran may also help solve the antiballistic missile problem, the main obstacle hindering Russian-American relations. What the sides need is a coordinated policy regarding Iran's strategic missiles.

But Moscow and Washington have diametrically opposite views of Iran's current and future ballistic missile threat.

Before the North Atlantic Treaty Organization summit in Bucharest, Romania, last month, U.S. President George W. Bush urged the development of the ballistic missile system in Europe because "Iran could test an intercontinental ballistic missile capable of reaching the United States and all of Europe."