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When it comes to closer African unity many politicians are long on rhetoric but sometimes short on action - but it seems today, for the five countries of the East African community at least, practical steps are being taken.
They've agreed to create a Common Market to take effect in July next year, which would allow the free movement of goods, services and people.
The group, which consists of Tanzania, Kenya, Uganda, Rwanda and Burundi, has a combined population of over 120 million people.
Their leaders hope that the agreement will boost trade and investment - but what does this deal actually mean?
Our reporter, Jamhuri Mwavyombo, has been following events from Arusha.
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