(CNN) -- America's top diplomat pressed hard 
Thursday for international action in Syria in the wake of last month's 
chemical weapons attack, saying "the U.N. Security Council must be 
prepared to act next week" given a report he says shows Syria's 
government is culpable.
Speaking ahead of next 
week's U.N. General Assembly, in which world leaders and diplomats 
convene in New York, U.S. Secretary of State John Kerry said "the 
complete removal of Syria's chemical weapons is possible here, through 
peaceful means." But urgency is needed, he added, saying, "Time is 
short. Let's not spend time debating what we already know."
"This fight about Syria's chemical weapons is not a game," Kerry told reporters. "It's real."
Washington has been 
leading the charge for action -- including possible military 
intervention -- in Syria since an August 21 chemical weapons attack 
outside Damascus that U.S. officials estimate killed about 1,400 people.
Kerry and others have 
said Syrian President Bashar al-Assad's government was behind the 
attack; al-Assad and fellow Syrian officials have adamantly denied that 
claim and blamed rebels. A report from U.N. chemical weapons inspectors 
who went to Syria had the potential to offer a fact-based assessment 
with the potential to bridge the divide.
That report came out this
 week. While, per its directive, it did not cast blame on any one side, 
Kerry said that it offered "crucial details" that make the case 
implicating al-Assad "only ... more compelling."
"Anybody who reads the 
facts and puts the dots together -- which is easy to do and they made it
 easy to do -- understands what those facts mean," Kerry said.
As an example, Kerry said
 the U.N. report notes that only the Syrian government forces are 
capable of using the type of chemical weapon-laden munitions and rockets
 the way were used. Kerry said it's unrealistic to think anyone but they
 had access to such weapons as well as the means to deliver them.
"There's not a shred of evidence that the opposition does (have that capability)," he added.
But Syria, and its longtime ally Russia, continue to offer a starkly different viewpoint.
Moscow has described the
 U.N. report as "distorted," with Deputy Foreign Minister Sergey Ryabkov
 telling Russia Today it was built on insufficient information.
In the same interview, 
Ryabkov said Syria has provided evidence -- which Russia is studying -- 
that implicates rebels carried out the attack.
Russian President 
Vladimir Putin on Thursday stressed that opposition fighters may have 
done so in order to provoke an international response. Material has been
 taken from the Syrian army, he added.
Yet, without mentioning 
any country or group in particular, Kerry said Thursday that such 
theories distracted from a critical need for the international community
 to act quickly and decisively in Syria.
"We really don't have time today," the secretary of state said, "to pretend that anyone can have their own set of facts."
Minister: Russia could help move, destroy weapons
The rhetoric out of 
Moscow might seem sharply opposed to that out of Washington. But Russia 
was the one to offer a proposal that U.S. President Barack Obama and 
others have embraced -- to eliminate the Syrian government's chemical 
weapons stockpile -- and it signaled its intent Thursday to help with 
that plan.
Russian Defense Minister
 Sergei Shoigu said his country is willing to transport and destroy 
Syrian chemical weapons, although only as part of an international 
coalition.
In fact, Russia and the 
United States agreed earlier this month on the framework for such a 
plan, and Syria has said its willing to give up its chemical weapons.
But reaching a final 
deal at the United Nations will be tough. U.S. and French officials want
 to include the threat of military action in the event Syria doesn't 
comply. But Russian officials don't want any wording that could trigger 
the use of force, a point Putin reiterated at the same Valdai forum -- 
an annual meeting in which experts, pundits and diplomatic personnel 
gather for discussions with senior Russian officials -- that Shoigu 
attended.
"The threat of using 
force is far from being the way to solve all international problems," 
Putin said Thursday, adding the U.S. Congress should be going through 
the U.N. Security Council rather than debating the use of force against 
Syria.
The Russian leader questioned merits of Western military intervention, saying it hasn't worked elsewhere in places like Libya.
"Good motives, good 
intentions, led to these military interventions in Libya," Putin said. 
"But did it bring about democracy? The country has been divided up into 
countries like tribes fighting each other."
And what if al-Assad 
doesn't comply with any deal, as rebel leaders believe he will? Putin 
brushed off a question Thursday as to what Russia would do if that 
proves true.
"We don't have any 
reason to believe they won't implement what they have said. If they 
don't, we will reconsider the question," he said.
Syrian leader says he welcomes U.N. inspectors' return
Meanwhile, Syria's president says he'll 
welcome the return of U.N. investigators to follow up on more allegations of chemical weapons use in his country.
 
"We've been asking them 
to come back to Syria to continue their investigations," al-Assad told 
Fox News in an interview broadcast Wednesday.
Al-Assad said he hadn't 
had time yet to analyze the U.N. investigators' findings, but he 
stressed that they have more work to do.
"They haven't finished 
it yet," he said, adding that it's clear that rebels, not his 
government, were behind chemical weapons attacks.
Ake Sellstrom, the head 
of the inspection team that visited Syria after the August 21 attack, 
told CNN that another visit could take place as early as next week.
U.S. surveillance 
satellites indicate Syria's government has moved its chemical weapons in
 recent days, two Obama administration officials -- each with a 
different agency -- say.
One of the officials 
said it "is unclear (if) they are moving them to consolidate the 
stockpile and then declare it, or are they moving it around to conceal 
it." Both officials asked to remain anonymous due to the sensitive 
nature of the information.
As world leaders 
continued to debate what to do about such weapons, violence continued to
 rage inside the Middle Eastern nation much as it has, on a daily basis,
 for well over two years.
The U.N. estimates more 
than 100,000 people have died since March 2011, a period in which harsh 
government crackdowns against protesters devolved into an all-out civil 
war. Another 2 million fled their homeland, while more than 4.25 million
 have been displaced within Syria, also according to the United Nations.
The president of another
 of Syria's long-time allies, Iran, offered Thursday to broker efforts 
to bring peace to the war-torn nation. In a 
Washington Post op-ed,
 Iranian President Hassan Rouhani announced his "government's readiness 
to facilitate dialogue between the Syrian government and the 
opposition."
 
There was no immediate 
reaction to Rouhani's offer from any key players in the struggle. Yet 
given the military support that Iran has reportedly given al-Assad 
throughout this ordeal, it seems unlikely the rebels would consider any 
Iranian official a truly independent broker.
Amidst all this talk, 
the bloodshed continues. The opposition Local Coordination Committees of
 Syria reported at least 82 dead across the country Thursday, including 
15 killed by shelling from Syrian warplanes in the Idlib province town 
of Sinjar.
But the violence didn't just pit opposition fighters against government forces.
For a second straight 
day, Free Syrian Army rebels clashed with fighters from the al 
Qaeda-linked Islamic State of Iraq and Syria near the northern town of 
Azaz, not far from the Turkish border.
Abu Thabat, a Free 
Syrian Army official, said his group has received reinforcements from 
two other battalions in the fight in what's been rebel-controlled 
territory. They've managed to push the al Qaeda-linked fighters back 
some, though the battle continues.
"We are regrouping," Thabat said. "We will call for more reinforcements and will probably attack tonight."
A short time later, 
though, a scanned letter signed by an Islamic State of Iraq and Syria 
member, a captain in the Free Syria Army and two witnesses appeared to 
indicate that these hostilities were over -- at least for now.
According to the letter 
posted on the Facebook page for a rebel-held border crossing community, 
the parties have agreed to an immediate cease-fire, the prompt return of
 prisoners and seized property and the formation of a committee to look 
at resolving the two sides' dispute long-term.