On Sunday, Lieutenant General Mohamed Hamdan Dagalo defended the RSF's legitimacy.
"We are committed to the principle of a single military formed according to agreed upon timelines, and we are sincerely committed to being involved in security and military reform," he said in a speech.
The framework agreement, signed in December, recognizes the RSF as a force alongside the military, police, and general intelligence. It assigns the head of state as its highest commander and also calls for its integration.
"The Sudanese military is a historic institution, and it will not be captured by any party," Dagalo said. "We are part of it and we will not spare any effort to defend it from anyone who abuses or belittles it."
The RSF is Sudan's largest paramilitary group. It emerged from the "janjaweed" militias accused of atrocities during the early 2000s conflict in Darfur.
They are also accused by human rights groups of killing scores of protesters since the military overthrow of Omar al-Bashir in 2019. Dagalo, who is known as Hemedti, has denied most of these claims, blaming infiltrators, while allowing the prosecution of some soldiers.
RSF commander General Mohamed Hamdan Dagalo, joined Sudan's leader General Abdel Fattah al-Burhan, in a coup in 2021 that ended a ruling partnership between the military and pro-democracy groups and plunged the country into political and economic turmoil.
Pro-democracy groups and army leaders have called for the RSF to be integrated into the main military and for the formation of a single army.
The military leadership has reached an initial agreement with political groups, with discussions going on to formalize a new political settlement and create a new government.
But in a speech on Thursday, Burhan said the army would only support the deal as long as it provided for the integration of the RSF.