Angola and the front-iine States, more intransigence and refusals to implement resolution 435 (1978) and more actions committed with impunity by South Africa as a result of the‘ continued collaboration- of a permanent member of this Council through its insistence on maintain- ing the policy of constructive engagement. 39. The responsibility is in the hands of the Council, and primarily in-the hands of its permanent members. The members of the Council have the floor. 40. On 20 June of this year, the Council considered the complaint of Angola on an incursion into the province of Cabinda in Angola. On that occasion, the Council adopted resolution 567 (1985), condemning South Africa for those acts and demanding the immediate and uncondi- tional withdrawal of all South African troops from Ango- lan territory. 4 1. Just two weeks ago, we once again heard here a state- ment by the representative of Angola, who denounced another massive invasion by, South African troops, sup- ported by bombing carried out by South African Mirage jets, in the Angolan provinces of Cunene, Cuando- Cubango and Mexico, 275 kilometres north of the Na- mibian border and 180 kilometres from the Zambian border. At that time, the Council adopted resolution 571 (1985), through which it “Strongly condemns the racist regime of South Africa for its premeditated, persistent and sustained armed invasions of the People’s Republic of Angola”. Furthermore, the Council strongly condemned 4 South Africa for its use of Namibia, an illegally occupied Territory, as a springboard for these armed invasions and for the third time demanded that that country immediately and unconditionally withdraw all its troops from Angolan territory and that it put an end to these acts of aggression. 42. There has not even been time to implement the man- date contained in this most recent resolution-that is, to 
**Analysis**
The text appears to be discussing a political issue related to international relations, specifically the conflict between Angola and South Africa, and the role of the United Nations Security Council in addressing this issue. The text mentions resolutions, condemnations, and demands for troop withdrawal, indicating a focus on international diplomacy and conflict resolution.

**Category**
International relations, Humanitarian aid and relief