"Although the Derg’s fighting capacity increased, the basic difficulties of communist rule got worse. Eritreans and Somalis kept up the struggle against a government which used brutal methods of suppression. Economic mismanagement was severe. Whole regions of the country experienced famine. The assault on religion and social customs caused enormous resentment. Mengistu even annoyed his Soviet advisers. They thought his propensity for political violence counter-productive; they were also disappointed by his failure to construct a communist party, mobilise the ‘masses’ and resolve inter-ethnic enmities. The continual executions were regarded as undesirable. Mengistu had built a confinement ward almost to rival Pol Pot’s in the lunatic asylum of communist politics. Far from being controllable, he had used Soviet and Cuban assistance more or less as he liked."
January 1, 1970
https://en.wikiquote.org/wiki/Mengistu_Haile_Mariam