Barack Obama hailed the formation of a „core coalition“ of 10 countries – led by the United States and including the UK, France and Australia – who were aim to destroy what he described as the savage and nihilistic Islamic State (Isis) in Syria and Iraq.

Speaking at the closing of the Nato summit in Wales, the US president said the grouping, which also included Germany and Canada, „stood ready to confront this terrorist threat with military, intelligence, law enforcement as well as diplomatic efforts“.