* "Free Army" rebels backing protesters take fight to Assad
* Opposition say attacks increased in last 10 days
* Head of army defectors meets National Council
By Khaled Yacoub Oweis
AMMAN, Dec 2 (Reuters) - Syrian army defectors are targeting military convoys sent to reinforce President Bashar al-Assad's crackdown on popular unrest, a senior rebel said, increasingly taking the fight to Assad's forces in response to what he called state brutality.
Colonel Riad al-Asaad told Reuters that fighters from the Syrian Free Army, a loose collection of military units formed from thousands of military deserters, had improved their reconnaissance ability to enable them to disrupt army movements.
In the last month, army rebels have attacked and destroyed parts of an armoured convoy in the southern province of Deraa, opened fire on an intelligence centre on the outskirts of Damascus, and killed six pilots at an air force base.
On Thursday they killed eight people in a three-hour battle with security forces at an intelligence centre in the northern province of Idlib, an activist group said.
It was the latest clash in a spreading cycle of violence which has prompted the U.N. human rights chief to say that Syria appears to be on the cusp of civil war.
Colonel Asaad said the increased attacks were in response to Assad's military crackdown on eight months of protests which the United Nations says has killed more than 4,000 people.
"For months now regime forces have not entered a city, town or village without using heavy guns, armour and tanks against their inhabitants. We have a right to stop the troops going to violate the people," Asaad said in an interview, speaking by telephone from Turkey where he has taken refuge.
A United Nations commission said this week Syrian security forces had committed crimes against humanity including murder, torture and rape. "Defending against such brutality, which now knows no limits, is a natural right," Asaad said.
Syrian authorities say they are fighting "terrorist organisations" that, according to Damascus, are trying to incite civil war and have killed 1,100 soldiers and police since the uprising broke out in March.
MORE ATTACKS
Opposition sources cite increased operations in the last 10 days by defectors and insurgents in the central regions of Hama and Homs, where supply lines are being set up to Lebanon and to the rugged Idlib province on Turkey's border.
Opposition to Assad has been fiercest in those provinces, as well as the eastern region of Deir al-Zor near the Iraq border. Assad has poured troops and tanks into the areas.
Defectors have also taken losses, especially in the central town of Rastan near Homs, where opposition sources said 22 deserters including two officers were killed in a tank-led assault two weeks ago.
Asaad declined to be drawn into operational details, but he said that the defectors have changed tactics since they started coordinating three months ago, when he said attacks were targeting security police checkpoints.
He said defectors were not attacking troops in their barracks and that ambushes on military convoys were justified: "Tanks are usually assigned to their bases. The only reason they are leaving them is to kill and destroy people.
"Those soldiers who have taken an oath to serve and protect and are now harming the people have to quit and join the ranks of the people," Asaad said.
He said defectors, who number over 10,000, were also trying to target security police complexes where he said thousands of anti-Assad Syrians were being held, as well as command centres directing the crackdown.
"They are legitimate targets across the country,' he said. "We have to attack them because it's from there that orders are given to put down the Syrian people."
Last month the Syrian Free army formed a military council of nine defecting officers headed by Asaad. They issued a declaration pledging to protect peaceful protests, "bring down the regime and protect citizens from repression ... and prevent chaos as soon as the regime falls".
A prominent member of the Syrian National Council, the main opposition group that was also formed in Turkey, said its leader Burhan Ghalioun met Asaad in Istanbul this week.
Council member Rima Fleihan said it was the first meeting between the two men and that they had "affirmed that the (rebel) army's role is to protect demonstrators and the Syrian people from the attacks by regime forces".
But she added that the Syrian National Council only endorses peaceful revolt and that the Syrian Free Army was not a division of the Council.
(Editing by Mark Heinrich)
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