* Russia sends navy flagship to base in Syria
* Retired admiral says ships to prevent military conflict
* Russian media say U.S. warships in the region
By Thomas Grove
MOSCOW, Nov 28 (Reuters) - Russia is sending a flotilla of warships to its naval base in Syria in a show of force which suggests Moscow is willing to defend its interests in the strife-torn country as international pressure mounts on President Bashar al-Assad's government.
Arab League sanctions and French calls for the establishment of humanitarian zones in Syria have increased international pressure on Assad to end bloodshed that the United Nations says has killed 3,500 people during nine months of protests against his rule.
Russia, which has a naval maintenance base in Syria and whose weapons trade with Damascus is worth millions of dollars annually, joined China last month to veto a Western-backed U.N. Security Council resolution condemning Assad's government.
Izvestia newspaper reported on Monday, citing retired Russian Admiral Viktor Kravchenko, that Russia plans to send its flagship aircraft carrier the "Admiral Kuznetsov" along with a patrol ship, an anti-submarine craft and other vessels.
"Having any military force apart from NATO is very beneficial for the region as it prevents the outbreak of armed conflict," Kravchenko, who was navy chief of staff from 1998-2005, was quoted as saying by Izvestia.
A navy spokesman quoted by the newspaper confirmed that the Russian warships would head to the maintenance base Russia keeps on the Syrian coast near Tartus but said the trip had nothing to do with the uprising against Assad.
The paper said the Admiral Kuznetsov aircraft carrier would be armed with at least eight Sukhoi-33 fighters, several MiG-29K fighters and two helicopters.
It will also have cruise and surface to air missiles, the paper said.
A navy spokesman was not available to comment to Reuters.
Yegor Engelhart, an analyst with Moscow-based defence think-tank CAST, said Moscow did not want its position to be ignored while the Assad government was under pressure.
"At the very least Moscow wants to show that it is willing to defend its interests in Syria," he said
Russian officials say the naval base at Tartus is used for repairs to ships from its Black Sea fleet and Izvestia said about 600 Russian Defence Ministry employees worked there. There are currently no Russian ships there, the paper said.
Russia, a veto-wielding permanent member of the U.N. Security Council, abstained from voting on a resolution that paved the way for Western military intervention in Libya but later criticised the mission saying NATO overstapped its mandate and interfered in a civil war.
Russia said it lost of tens of billions of dollars in potential arms deals with Muammar Gaddafi's fall and is loathe to lose another customer in the region. Syria accounted for 7 percent of Russia's total of $10 billion in arms deliveries abroad in 2010, according to CAST.
Moscow has traditionally used what influence it still has in the Middle East as a lever in diplomatic manoeuvring with Europe and in particular the United States, Moscow's Cold War foe. (Reporting by Thomas Grove; Editing by Guy Faulconbridge)