Since February 9 the Arab-Kurdish alliance of the Syrian Democratic Forces backed by the US have been on an offensive against the last dregs of the Islamic State group in Syria. – February 9: The SDF announces it has begun the “decisive battle” to take the last scrap of territory from the Islamic State group — a tiny patch of four-square-kilometres (one-square-mile) in eastern Syria. Up to 600 jihadists are believed to remain inside, according to the alliance, along with several hundreds of civilians.