A Turkish offensive into Iraq appears more likely after a US Congressional vote recognising the 1915 mass killings of Armenians as genocide. The resolution outraged Ankara and Turkish Prime Minister Recep Tayyip Erdogan has said his country would respond, though he did not specify how. Turkey has been amassing troops on the border with Iraq to combat attacks by Kurdish rebels based there.
But the US, for whom Turkey is a crucial regional ally, is deeply opposed to any cross border operations, saying they would further destabilise the situation in Iraq. Next week the Turkish parliament is to vote on a request by the government to allow an operation in Iraq. That would set Washington and Ankara on a collision course.
A statement by Erdogan that Turkey would be prepared to pay the price of a military campaign in Iraq has raised the stakes. But despite anger over the genocide vote analysts believe the Turks may give diplomacy more time to work before launching a strike.