(CBS News) GENEVA -- The proposed diplomatic solution to the Syria crisis is moving ahead. To avoid a U.S. military strike, Syria officially notified the U.N. Thursday that it will sign the treaty banning chemical weapons.
Syria also said it willa month later. But that was just information it promised, not the weapons. That immediately became an issue in Geneva, where Secretary of State John Kerry over the Russian-brokered peace deal.
Kerry said it's not enough for Syria to give the world an inventory of their chemical weapons in 30 days -- that's a non-starter for the United States. The U.S. says this is a special case about an attack that happened three weeks ago, and that there's little reason to trust the Assad regime.
Watch: Kerry says chemical weapons negotiations are "not a game," below.
The U.S. is looking for concrete signs in Geneva from the Russians and the Syrians that they're going to move quickly to locate and destroy all of the Assad regime's chemical weapons stockpiles.
Kerry told Russian Foreign Minister Sergei Lavrov that the
"It has to be real, it has to be comprehensive, it has to be verifiable, it has to be credible, it has to be timely, and implemented in a timely fashion," Kerry said.
If these negotiations fail, Kerry said military force is still an option - and this is a sticking point for the Russians. They want the threats taken off the table.
On Thursday night, Kerry and Lavrov decided to meet one-on-one over a private dinner to talk about some of the technical details, and tomorrow they'll be joined by Lakhdar Brahimi, the U.N. special envoy to Syria.