* Young army defectors form core of rebel forces
* Insurgents scratch together funds for weapons
* Sectarian splits fuel worries of religious strife
* Medics, media activists bolster opposition
By Alexander Dziadosz
QUSAIR, Syria, March 6 (Reuters) - The computer engineer from Homs had hoped to work in Dubai after his military service. Make some money, marry his fiancee. Carve out a comfortable life in Syria's slowly liberalising economy.
His dreams and those of thousands of other young Syrians collapsed when the revolt against President Bashar al-Assad, 46, broke out a year ago.
For one thing, the overstretched army prolonged his two-year military service beyond its July end-date, keeping him four more months before he deserted and made his way to Qusair, a town of 40,000 people, 12 km (seven miles) from the Lebanese border.
A husky, bearded man in his early 30s, he took the nom de guerre, Homsi, after his battered home city, and joined rebels fighting in the hills and fields for a "free and dignified life". But Homsi had no gun. For that he would have to wait.
"We are in a poor revolution," he said last week, standing by a crumbling mud brick wall in Qusair. "We have to buy weapons with our own money ... When we defected from Assad's army, some took their guns. But not all of us did."
Army deserters like Homsi form the backbone of the loosely organised Free Syrian Army, nominally led by officers based in Turkey from where they proclaimed its existence over the summer.
Syria's protest movement was mostly peaceful at the outset, but Assad's relentlessly violent response prompted more Syrians to fight back, catapulting the FSA to prominence, despite its frailties in weaponry, logistics and command and control.
The fighters, and the thousands of Syrians supporting them, span a religious and ideological spectrum. Smugglers, teachers, engineers or farmers, some are secular, many more are pious and a few wear the long beards favoured by radical Salafi Muslims.
Overwhelmingly, they are Sunni Muslim former conscripts in their 20s who deserted while on leave or during operations when, they said, they disobeyed orders to shoot unarmed demonstrators.
Most are motivated primarily by grievances accumulated under decades of authoritarian rule. "We only need freedom - no need to hide, no need for blood on the streets," Homsi said.
Armed mostly with smuggled or stolen weapons, the fighters in and around Qusair have given residents some respite from Assad's ruthless "shabbiha" (ghost) militias, and have forged routes to Lebanon to bring medicine in and take casualties out.
They benefit from local support and from the rugged border terrain where low concrete houses dot farmland and mountains.
But as a military outfit, they are far from formidable. Their light weapons and scarce ammunition cannot match the army's tanks and artillery in battle. When Assad's forces shell Qusair, the fighters melt away into the fields.
ARMING REBELS
The disparity in firepower has led to calls from some Gulf states and others to arm the rebels, as in Libya last year.
But Western powers have so far been wary of fuelling a conflict that could ignite broader strife in a region whose political struggles often take on an ethnic or sectarian colour.
Syria, where an Alawite minority elite dominates a Sunni majority living alongside Christians, Druze, Kurds and Palestinian refugees, borders Lebanon, Turkey, Iraq, Jordan and Israel, whose complex histories are threaded with communal bloodshed.
With his black Afghan-style tunic, baggy trousers and heavy beard, Abu Omar cuts the kind of figure who might set off alarm bells for Western governments calculating how much support to give Syrian insurgents trying to topple the secular Assad.
Peppering his speech with religious expressions, Abu Omar, from the Qusair area, says he fought U.S. forces in Afghanistan's Helmand province and then in Iraq before returning to battle Assad in his homeland.
"We don't want support from the United States. They're our enemy," Abu Omar said, a Kalashnikov rifle across his shoulder. "Once we finish with Bashar, we'll go fight America," he said, and then chuckled. "We're kidding. That's a joke."
Like other fighters, Abu Omar denied that al Qaeda foreign militants, whose chief has urged Syrians to fight Assad, had joined the fray. "Have you seen them? They aren't here."
All the rebels encountered by Reuters in Qusair were Syrian, many of them local or from nearby Homs and some from cities as far away as Deir al-Zor in the east or Deraa in the south.
Sensitive to their portrayal by state media as "armed terrorists" and al Qaeda militants, many fighters deny the revolt has a sectarian aspect, accusing Assad's government or foreign powers of trying to exploit religious divisions.
"Salafis? What are these Salafis? Someone who prays? Plenty of people pray, but I don't know what Salafi means," said a 24-year-old army defector nicknamed al-Hassan. "Bashar al-Assad's regime taught us that Salafis love to kill. That's all."
He said Syrian officers are harassed or detained if they grow beards, pray frequently or are overtly pious. "If you pray in the army, it's a huge problem," Hassan added.
"There's no one here who wants Islamic government ... When Assad goes, we just want someone who fears God. Sunni, Alawite, Kurdish, Christian. One who fears God, rules us with justice and gives us our rights."
Some fighters explain the limited number of Christians and Alawites in FSA ranks by saying that rebels from those groups would be at greater risk of torture or death if captured.
"All people from every religion know that the revolution is right," said a former army lieutenant nicknamed Ibra. "But as minorities, other than majority Sunnis, their situation doesn't allow them to be effective participants in the revolution."
FSA officers say they want to prevent Syria from sliding into civil war and their main aim is to protect civilians and provide as much aid as possible to residents of besieged areas.
One officer, nicknamed Abu Arab, appeared affronted when a journalist asked whether Salafis were among the rebels. "Why is the West afraid of Salafis? Why is it afraid of Islam?" he demanded. "This is a Muslim country."
The rebels were motivated solely by Assad's injustices, he said. "The army here is attacking the country. Have you ever seen the U.S. army attack New York? The truth is clear, but the world is committed to falsehood when it comes to Syria."
OLD GRIEVANCES
Still, there is an undeniably religious vein running through the movement. Most of the Qusair fighters pray regularly. Many have grown beards, now they are free of secret police scrutiny.
One of the largest brigades in the area is called al-Farouq, a reference to an early Islamic leader who many Shi'ites consider was against their cause. The name is sewn in gold letters into the camouflage jackets of some local fighters.
Some, like Abu Omar, are ostentatiously devout. "Salaam aleikum (peace be upon you)" one fighter with a heavy beard and no moustache greeted a Western journalist at a checkpoint. "You must pray to God. God is greatest," he smiled, pointing skyward.
And sectarian-tinged suspicion and bitterness is widespread. Fighters question visitors from Iraq and Lebanon about whether they are Sunni or Shi'ite, and often relay rumours of atrocities carried out by "Iranian" militias against Syrian civilians.
Many were convinced that Shi'ites from abroad had entered Syria to bolster a government perceived as favouring Alawites, an offshoot of Shi'ite Islam, over Sunnis.
One Sunni army deserter from the Baba Amr district of Homs, devastated in a month-long siege, said an Alawite official had denied him a university teaching post, a decision he viewed as sectarian discrimination.
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