studios in singapore and london, this is bbc world news — it's newsday. good morning. it is eight here, seven in the evening in washington where the us has confirmed its biggest deployment of forces in syria to fight so—called islamic state. several 100 marines have been sent to support an allied local force have been sent to support an allied localforce aiming to have been sent to support an allied local force aiming to capture the islamic stronghold of rack up. —— raqqa. earlier i spoke to laura bicker in washington and asked her how risky this approach was. first of all, it is a strategy in which