Eritrea also fights a proxy war against Ethiopia in Somalia and in Ethiopia's rebellious Ogaden region.

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Human rights organizations have accused Ethiopia of massive human rights abuses of civilians in Ogaden.

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Fighting in Ethiopia's Ogaden region and across Somalia makes it more expensive to reach the hungry.

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In the Ogaden, in south-east Ethiopia, people are crowding into camps in the hope of finding water.

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Around 70 people were killed by floods in Ethiopia's eastern Ogaden region after a river burst its banks.

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He also accuses Eritrea of egging on Oromo rebels in the south and Somali separatists in the Ogaden region.

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It seems fairly clear that Ethiopia's hands are not clean in its handling of the separatist war in Ogaden.

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And in the south-east Ogaden region are Muslim Somalis, who have more in common with neighbouring Somalia than with the remote Tigrayans.

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The Ogaden and Oromia regions of Ethiopia already have their own rebel groups but these, in some areas, could be pushed aside by Islamist guerrillas.

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Then there is Eritrea's support for the Ogaden separatists in Ethiopia.

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