► Subscribe to the Financial Times on YouTube: http://bit.ly/FTimeSubs<br /><br />Turkey is to allow Kurdish forces to cross into Syria to fight in Kobani. This volte-face follows a previous refusal to help because of fears over links to the Kurdistan Workers’ party. President Erdogan had little choice but to capitulate to Washington, says the FT's Daniel Dombey.<br /><br />For more video content from the Financial Times, visit http://www.FT.com/video<br /><br />Subscribe to the Financial Times on YouTube; http://goo.gl/vUQx5k<br />Twitter https://twitter.com/ftvideo<br />Facebook https://www.facebook.com/financialtimes