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It has been a year since US forces carried out a raid that killed Osama bin Laden, the leader of al-Qaeda, in the Pakistani town of Abbottabad.

Ayman al-Zawahri, Bin Laden's Egyptian deputy, took over the reins of al-Qaeda, and many believe he may also be hiding in Pakistan.

Bin Laden's killing cast a long shadow over ties between Pakistan and the US, with Islamabad alleging its sovereignty was breached by the operation.

The mending of the relationship is a top priority for both countries, but mutual mistrust remains.

Al Jazeera’s Imtiaz Tyab reports from Islamabad.

Source: Aljazeera