Islamic State tightens siege of Syria town, more Europeans join alliance

Turkish and Syrian Kurds run as Turkish security forces use tear gas to disperse them near the Mursitpinar border crossing on the Turkish-Syrian border, near the southeastern town of Suruc September 26, 2014. REUTERS/Murad Sezer

KARACA Turkey/BAGHDAD (Reuters) - Islamic State fighters tightened their siege of a town on Syria's border with Turkey on Friday despite U.S.-led air strikes aimed at defeating the militants in both Syria and Iraq, in a coalition which has now drawn widespread European support.

Britain, Washington's closest ally in the wars of the last decade, joined an alliance after weeks of weighing its options. Britain's parliament voted 542 to 43 to back Prime Minister David Cameron's decision to take part in air strikes in Iraq.