The government's recent gains on the outskirts of the capital, Damascus, and in the north outside the country's largest city, Aleppo, have reinforced Assad's position. And the more the government advances, the easier it is to dismiss the weak and fractious opposition's demands.
"Assad wants to go to Geneva with credit, not debit," said Hisham Jaber, a retired Lebanese army general who heads the Beirut-based Middle East Center for Studies and Political Research. "He is trying day after day to gain on the battlefield, and when he goes to Geneva he can say, ... 'OK, here's the situation we are strong on the field. What do you have?'"
The government has made its biggest gains in the suburbs south of Damascus, where army troops backed by guerrillas from the Lebanese Shiite Hezbollah group and Shiite militants from Iraq have captured five towns since Oct. 11. The latest to fall was Hejeira, which army troops swept through Wednesday, just days after capturing the adjacent suburb of Sbeineh.
The troops were quickly followed by state television cameras eager to broadcast the victory: a two-starred government flag triumphantly planted amid bombed-out buildings, twisted rebar and rubble-strewn streets.
In northern Syria, Assad's forces have captured two towns this month Safira and Tel Aran, southeast of the battlefield city of Aleppo and have retaken a military base near Aleppo's international airport.
Aleppo, the country's largest city and former commercial capital, is a major prize in the war. Assad's military and the rebels have been battling over it since the summer of 2012, carving it up into rebel- and government-held areas and leaving much of the city in ruins.
In some ways, the recent run of government victories fit into the regular back-and-forth rhythm of the conflict over the past nearly three years, with the pendulum swinging in Assad's favor at the moment.
But the government advances around Aleppo hold greater trouble for the opposition since they suggest the rebels' grip on the north much of which fell to anti-Assad fighters over the past year is far more tenuous than once believed.
A confluence of factors has increasingly hampered the opposition's war effort in the north.
The rebels have been crippled by infighting since the al-Qaida-linked Islamic State in Iraq and the Levant aggressively pushed into rebel-held areas of the north this year. Fighters from the extremist group, most of them foreigners, have clashed repeatedly with more moderate rebel brigades, leaving scores dead on both sides.
Rebel groups, particularly the Islamic State but more mainstream factions as well, also have been engaged in a brutal side conflict with Syria's Kurdish minority, which has a large presence in the northeast and parts of Aleppo province.
Combined, these two wars-within-a-war have sapped the opposition's strength and undermined the effort to oust Assad.
They have also provided an opening for the Syrian leader to exploit.
"Fighting among ourselves has done a lot of damage," Abu Thabet, the commander of the Aleppo Swords Battalion, said by telephone. "Six months ago, the regime was always on the defensive and we would attack first. Now, after we started infighting, the regime is always on the offensive. They attack, and we defend." Abu Thabet spoke on condition he be identified only his nom de guerre to protect his security.
Rebels also have been frustrated by U.S. President Barack Obama's decision to seek a diplomatic path to disarming Damascus of its chemical weapons.
After an Aug. 21 chemical weapons attack on rebel-held suburbs of Damascus that killed hundreds, Washington accused Assad's forces of carrying them out though his government denied it. The U.S. then threatened military strikes against Syrian forces. The strikes were averted when Russia brokered a deal to destroy Assad's chemical arsenal by mid-2014.
Many in the opposition had held out hopes that American military intervention even if limited in scale would help tip the scales of a deadlocked civil war in the rebels' favor. Compounding their disappointment, many rebels saw the diplomatic deal as a giving green light to Assad to continue killing people with conventional weapons, as well as effectively making the Syrian leader a partner with the international community at least until the arsenal is destroyed.
At the same time, the flow of weapons and ammunition from across the border in neighboring Turkey to fighters inside Syria has slowed to a trickle, rebels say, as Ankara has grown increasingly concerned about the prominent role of Islamic extremists.
"Support from the military council of Aleppo and its suburbs has stopped completely," said Abu Thabet, referring to the rebel body that coordinates the weapons flow from Turkey to rebel battalions doing the fighting.
"This has all stopped," he said. "I'm on the ground, I really don't know what's going on with Turkey or the council, all I know is that we're not getting anything."
___
Associated Press writers Albert Aji in Damascus, Syria, and Yasmine Saker in Beirut contributed to this report.
___
Follow Ryan Lucas on Twitter at www.twitter.com/relucasz .
