The South African government declared an immediate cease-fire in the Angolan war Monday and set Nov. 1 as the date it plans to begin withdrawing from neighboring South-West Africa. However, Foreign Minister Pik Botha said further negotiations are necessary to determine the timetable for the departure of Cuban troops from Angola and the granting of independence to South-West Africa, also known as Namibia. "This is the first step of a very long, arduous road to peace," Botha told a news conference. Cuba, Angola and the United States were also expected to issue statements Monday following the fifth round of U.S.-mediated peace talks.