(Archived document, may contain errors) 6/29/88 207 ANGOLA'S FREEDOM FIGHTERS: WHY THEY MERIT U.S. AID A s Jonas Savimbi, President of the National Union for the Total Independence of Angola (UNITA), visits Washington this week for the first time since th e United States resumed U.S. military assistance to his freedom fighters two years ago, events are moving on several fronts that will affect the future of his struggle: