Iraq is building a concrete wall along part of its border with Syria to stop Islamic State group fighters from infiltrating, an Iraqi military source said Sunday. In the “first stage” of construction, a wall around “a dozen kilometres (seven miles) long and 3.5 metres (11 feet) high was built in Nineveh province”, in the Sinjar area of northwest Iraq, a senior officer told AFP, requesting anonymity. Iraq, which shares a more than 600-kilometre long border with Syria, seeks to “put a stop to the infiltration of Islamic State members” into its territory, the source added, without specifying how …