London, 13 Oct - A relationship between al-Qaeda and Iran is an unlikely one considering the very volatile Sunni – Shia problems and differences. However, when aims coincide, these differences can be put to one side. The Iranian regime has been working with al-Qaeda ever since the beginning of the nineties in Sudan.
Later, in Afghanistan, the two worked together and cooperation continued after the 9/11 attacks in New York. It was not until years later, in 2011, that Iran and al-Qaeda were formally accused of having links and co-conspiring in the 9/11 attacks.