A transatlantic split has opened up over the crimes of so-called Islamic State.
Last week the American Secretary of State, John Kerry, declared that the group had committed genocide against Yazidis, Christians and Shia Muslims. Mr Kerry also said ISIS was responsible for crimes against humanity and ethnic cleansing in areas it controls in Syria and Iraq.
However, this week the British Prime Minister David Cameron dismissed calls to classify the jihadist attacks against Christians and other religious minorities in the Middle East as genocide.
His comments came as peers in the House of Lords planned a vote on the issue through an amendment to the Immigration Bill.