Russian and Syrian war planes bombed rebel-held northwest Syria near the border with Turkey on Thursday to push back an insurgent offensive that captured territory for the first time in years, Syrian army and rebel sources said.Rebels led by militant group Hayat Tahrir al-Sham on Wednesday began an incursion into a dozen towns and villages in northwest Aleppo province, which is controlled by Syrian President Bashar al-Assad’s forces.The attack was the biggest since March 2020 when Russia, which backs al-Assad, and Turkey, which supports the rebels, agreed to a ceasefire that ended years of fighting that uprooted millions of Syrians opposed to al-Assad’s rule.For all the latest headlines follow our Google News channel online or via the app.In its first statement since the surprise campaign, the Syrian army said it had inflicted heavy losses on what it described as terrorists who had attacked on a wide front.The army said it was cooperating with Russia and unnamed “friendly forces” to