United Nations (UN) Secretary-General Antonio Guterres speaks during a press conference with Senegal s president during his West Africa tour, in Dakar, on May 1, 2022. AFP
Guterres made the suggestion in an interview with the French radio station RFI ahead of a key decision on the future of the UN peacekeeping force in Mali.
The Security Council next month is to determine whether to renew the mandate of the Integrated Stabilization Mission in Mali (MINUSMA), one of the UN's biggest peacekeeping operations.
"The true situation is that without MINUSMA, the risk of the country's collapse would be enormous," Guterres said in the interview, broadcast on Wednesday and Thursday.
"I am not going to propose that this mission be ended because I think that the consequences would be terrible.
"But it (MINUSMA) is operating in circumstances that really call for (not) a peacekeeping force but a strong force (entrusted with) enforcing peace and fighting terrorism," he said.
"This strong force has to be an African force, from the African Union, but with a Chapter Seven Security Council mandate and obligatory financing," he said.
Chapter Seven of the United Nations Charter permits use of armed force in the event of a "threat to the peace."
MINUSMA, which has a current deployment of 14,000 troops and police, was created in 2013 to help support the fragile Sahel country in its fight against jihadist insurgents.
But the force has often been criticised for being shackled by a mandate that has left it unable to intervene robustly.
As a result, the security onus is thrust on Mali's poorly-equipped armed forces, according to this view.
Most of the contingents in MINUSMA come from African governments.
Guterres said he was aware of the scale of the UN's task in Mali.
MINUSMA has lost 170 members since 2013, many of them killed by roadside bombs or in ambushes.
"It really is a very difficult... situation for us," he said.
He pointed to what he called "very difficult cooperation" between Mali and MINUSMA on the question of human rights.
Last month, several hundred civilians were killed in central Mali by government forces and foreign operatives, which may have been Russian, according to Human Rights Watch (HRW).
Mali denies this, and says its forces eliminated more than 200 jihadists.
However, the UN says it is still awaiting permission from the authorities to send investigators to the region.
Next month's decision in New York comes in the context of a breakdown in relations between Mali and its traditional ally, France, which over the past nine years has stationed thousands of troops in the troubled Sahel state, backed by helicopters, jets and drones.
Those forces are being withdrawn from Mali after the two countries fell out following a military coup in August 2020.
The pullout may have implications for MINUSMA.
The UN's mandate authorises French forces to support the mission "when (it is) under imminent and serious threat."