FOUR hundred more troops are headed for Syria to help capture the Isis stronghold of Raqqa, the US military confirmed yesterday.

US Air Force Colonel John Dorrian, a spokesman for the US-led Operation Inherent Resolve bombing coalition, confirmed leaks from anonymous officials to the Washington Post on Wednesday.

Col Dorrian said the new force would be made up of US marines and Army Rangers — and claimed its deployment would only be “temporary,” according to the Reuters news agency.