Turkey's strained relationship with the Bush administration is likely to worsen after its foreign minister, Abdullah Gul, failed to make significant progress on Ankara's main objectives in Washington this week.

Disagreements, centred on Iraq and a resolution proposed in the US Congress that would officially recognise the mass killings of Ottoman Armenians as genocide, threaten to intensify anti-American sentiment in Turkey, while raising concerns in the US about a possible Turkish military intervention in northern Iraq.