A senior French officer involved in the fight against Islamic State in Syria faces punishment after launching a scathing attack on the U.S.-led coalition's methods to defeat the group in its remaining stronghold of Hajin, the army said on Saturday. Colonel Francois-Regis Legrier, who has been in charge of directing French artillery supporting Kurdish-led groups in Syria since October, said the coalition's focus had been on limiting its own risks and this had greatly increased the death toll among civilians and the levels of destruction. We have massively destroyed the infrastructure and given the population a disgusting image of what may be a Western-style liberation leaving behind the seeds of an imminent resurgence of a new adversary," he said, in rare public criticism by a serving officer. The coalition could have got rid of just 2,000 militant fighters - who lacked air support or modern technological equipment - much more quickly and effectively by sending in just 1,000 troops, he argued. "This refusal raises a question: why have an army that we don't dare use?" he said. Legrier's article has embarrassed French authorities just hours before the coalition is expected to announce the defeat of the hardline Islamist group. "We have in no way won the war because we lack a realistic and lasting policy and an adequate strategy," Legrier said. "How many Hajins will it take to understand that we are on the wrong track?"