Instead, he called for direct peace talks between his group and the Luanda Government.
State Department officials have said the Luanda Government recently received Soviet arms worth $1 billion.
The rebels have said their goal is not victory over the Luanda Government but a national reconciliation with power-sharing and free elections in two years.
Another Cuban civilian spoke of feeling "betrayed" by the Luanda Government.
Simultaneously, both the Luanda Government and Unita began floating their own peace plans.
But the pact gives the Luanda Government sweeping powers in the interim, at least for the moment, say analysts examining the document's fine print.
But until new electoral rules are hammered out - a process that could take months - the Luanda Government can make whatever rules it likes.
For example, while the United States refused to recognize the Luanda Government and provided military support to its enemy, it maintained trade relations.
The Angolan insurgents say they are not trying to topple the Luanda Government, but want to help rule the country.
"Suppose the Luanda Government sets forth its program of national reconciliation," he said.