For nearly a century, a political chasm has divided Turkey and Armenia - two neighbours with bitter hostilities from the first world war.

Now, both governments are set to sign a landmark peace accord: the first step towards normalising diplomatic relations.

The move is expected to bring significant economic benefits to the region - a vital transit corridor for gas and oil to the West.

But it is also opening old wounds for many Armenians who accuse Turkey of a genocide in the waning days of the Ottoman Empire.

Al Jazeera's Anita MacNaught reports from the Turkey-Armenia border.