Unlike Uganda, Burundi, Kenya and Djibouti, which have sent thousands of troops under the African Union banner, Ethiopia is intervening in Somalia unilaterally, and won't stay for long.
Addis Ababa, Ethiopia
After weeks of denials, the Ethiopian government has used the advent of the new year to officially acknowledge it had rejoined the battle against militants in neighboring Somalia.
The arrival of Ethiopian troops from the west – who officially left in 2009 after deposing the Islamic Courts in a 2.5 year campaign – buttresses the efforts of Ugandan, Burundian, Djiboutian and Kenyan forces, all now fighting under the banner of the African Union.
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