When US president declared war over he upended consensus to see off threats of Iran and Isis
As Islamic State crumbled over the past two years, US generals and spies gradually turned their attention to what comes next. Ahead of all other perceived threats – even the residual menace of the jihadists themselves – was the entrenchment of Iran in the vanquished lands of Iraq and Syria.
The consensus among the US security establishment was almost universal: Washington’s forces needed to stay in eastern Syria to see off both, and that the task may be just as long and grinding as the fight against the terror group.
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