INSTANT VIEW: Reaction to U.S.-Russia summit

MOSCOW (Reuters) - The following are analysts' comments on agreements reached on Monday between U.S. President Barack Obama and Russian President Dmitry Medvedev.

ROLAND TIMERBAYEV, FORMER RUSSIAN AMBASSADOR AND CHAIRMAN OF THE Center FOR POLITICAL STUDIES RUSSIA (PIR), MOSCOW.

"I think the nuclear missile announcement is a good beginning. It gives some impulse to the negotiators to continue with the text. Both presidents want it and both of them need it, that's the important thing, but resetting relations will be a long process that cannot be done in a single day.

"The move on Afghanistan is very significant. We know Afghanistan very well, we were there, it's important we halt the flow of drugs we get from there."

KATE HUDSON, CHAIR OF CAMPAIGN FOR NUCLEAR DISARMAMENT, UK

"This is very positive and it's been achieved very rapidly. It's a very good start -- it's about a third of the arsenals and also includes delivery systems, which is something that the Russians were very keen to have included. Obviously, we'd like it to go further, but it's a very good start.

"One area where we'd like to see further progress is around the thorny issue of missile defense as well, but it looks like there is more to discuss there.

"I think the changed attitude by the U.S. administration (allowed this to happen)... President Obama seems genuinely to have a commitment in the direction (of nuclear disarmament) and it is obviously mirrored by Medvedev. It's the first time that Russia has said that it agrees with the goal of global abolition, which is very significant."

MALCOLM CHALMERS, RESEARCH FELLOW AT ROYAL UNITED SERVICES INSTITUTE, LONDON

"I think it would have been very disappointing if they had not struck a deal. That said, this is a framework agreement -- as you can see from the numbers, there's a large margin. There are some very big gaps.

"What's critical is how far they can now go, not just in pinning down the details they've announced today, but in giving an indication of where they are going next.

"One of the issues on the agenda (in the future) is actually finding a way of controlling actual warheads. This framework does not control actual warheads, it controls delivery vehicles for warheads... Warheads in storage are not covered and tactical weapons are not included. The further you come down toward 1,000 warheads or below, the more it matters."

ARIEL COHEN, SENIOR RESEARCH FELLOW AT THE HERITAGE FOUNDATIONIN WASHINGTON

"I think the main priority for Obama and Medvedev in terms of arms control has been achieved. They managed to continue the arms control regime between the United States and Russia, this is an area where state interests coincide, so is Afghanistan.

"They agreed to disagree on missile defense and they also agreed to continue their differences on Iran. I can't say that this is a fully fledged 'reset' of relations.

"It's important Obama did not cede his position on missile defense, there were concerns in Washington it would be traded for no tangible benefits. Hopefully that did not happen."