This week saw Chadian rebels stormed the country's capital Ndjamena, and come close to overthrowing the government of Idriss Debby, before threats of French intervention forced their withdrawal.

What are the origins of the rebel movement? What are the issues that they are fighting for? Is there a link to crisis in Darfur? Is this a fight for Chad's newly found oil wealth? This Video report form Al-Jazeera examines the issues in a two part series.

Part One : The Chadian crisis

Part Two : The Chadian crisis