A Sudanese soldier poses with a machine [Getty Images]

A Sudanese soldier poses with a machine gun in the oil town of Heglig bordering with South Sudan on April 24, 2012. South Sudan's leader accused Sudan of declaring war as Khartoum's warplanes bombed border regions in defiance of international calls for restraint. AFP PHOTO/EBRAHIM HAMID (Photo credit should read EBRAHIM HAMID/AFP/Getty Images)

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