IRAN has used earthquake relief flights to bring weapons and military equipment into its strategic ally Syria, nine Syrian, Iranian, Israeli and Western sources said. The sources told Reuters that the goal was to buttress Iran's defences against Israel in Syria and to strengthen Syrian President Bashar al-Assad. Reuters is the first to report this development. After the Feb. 6 earthquake in northern Syria and Turkey, hundreds of flights from Iran began landing in Syria's Aleppo, Damascus and Latakia airports bringing supplies, and this went on for seven weeks, the sources said. More than 6,000 people died in all of…