The letter from Angola's United Nations representative {Sept. 21} deserves a response. Since the Marxist MPLA government made a request of $116 million in emergency food aid, it continues to run away from the main reasons why there is famine in Angola.

First, the government has yet to be convinced that the centralized system of collective agriculture does not work because it leaves no incentives for farmers to produce surplus food. The Post was right in saying that "Angola's farm economy has collapsed in the 12 years since the MPLA took over the country, and Angolan farmers refuse to sell their food for Angolan currency, which is nearly worthless" {front page, Aug. 14}.

Second, the MPLA's policy of collective villages known as aldeamentos is the same policy used in Ethiopia, in which farmers are removed from their villages and put into artificial villages away from their land and the homes where they grew up.

Third, the government has spent 80 percent of its budget to purchase sophisticated weapons from the Soviet Union and to pay for the presence of more than 47,000 Cuban troops. Estimates of the actual military spending vary, but according to the U.S. State Department, this year alone the regime spent about $1 billion on armaments to fight against UNITA. The real cause of famine in Angola is the prolonged, costly war that oil companies are paying for.

What amazes me is that no one is talking about a solution. The Soviets and the Cubans still think that more MiGs and more Cuban troops are the solution. UNITA believes the solution to the Angolan civil war is the withdrawal of all foreign forces from Angola, the formation of a government of national reconciliation and unity and the holding of free general elections supervised by the U.N. and the Organization of African Unity.

UNITA does not oppose food aid to Angola, but food aid alone is only a cure of the symptoms of Angola, not a solution to the real problem of the war. For the sake of justice, food aid should be distributed to both sides of the conflict. A monitoring mechanism should be set up to make sure that the MPLA and their allies are not the dinner guests of American generosity, but rather the empty bellies of Angolan women and children, who have suffered the most during this crisis.

MARCOS SAMONDO Representative of UNITA Washington