Reasons:
South Sudan is predominately CHRISTIAN, where as the rest of Sudan is predominately Muslim.
South Sudan has been fighting against the government of Sudan for a long time.
NOW, THE ONLF AND THE OGADEN CLAN ARE BEING TRICKED INTO SIGNING AGREEMENTS THAT THEY CANNOT SEPARATE FROM ETHIOPIA, AND THAT THEY'RE PART OF ETHIOPIA. THE ETHIOPIAN GOVERNMENT KNOWS THAT IF SOUTH SUDAN CAN BE SEPARATED FROM SUDAN, SO CAN OGADENIA BE SEPARATED FORM ETHIOPIA, THUS MAKING WESTERN SOMALIA OR OGADENIA BACK INTO THE SOMALI NATION.

BREAKING NEWS. BREAKING NEWS. BREAKING NEWS. BREAKING NEWS. BREAKING NEWS. BREAKING NEWS !!!