Philippine President Ferdinand Marcos Jr. on Thursday witnessed the opening session of the Bangsamoro parliament, signaling his government's commitment to seeing through the largely Muslim region's transition to self-rule.

Marcos also inducted a fresh set of members of the Bangsamoro Transition Authority, an interim regional government dominated by the Moro Islamic Liberation Front, or the MILF, which is the largest Muslim rebel group in the southern Philippines.

The interim body, known by its acronym BTA, is tasked to ensure the region's readiness to hold a regular election for self-rule in 2025.

"As your president, I assure you, the BTA and all the Bangsamoro people, of this administration's full and unwavering commitment to the peace process and to BARMM," said Marcos, clearing early doubts on how he will tackle armed conflict in Mindanao.

Philippine President Ferdinand Marcos Jr. addresses the opening session of the Bangsamoro parliament on Sept. 15, 2022, in Cotabato, southern Philippines. (Photo courtesy of Bangsamoro Transition Authority)(Kyodo)

BARMM refers to the Bangsamoro Autonomous Region in Muslim Mindanao.

Under the 2018 Bangsamoro Organic Law, which paved the way for the creation of the Bangsamoro Autonomous Region, the transition period should have ended this year.

But the Philippine government decided to extend it by three years to give more time for the passage of crucial legislation such as on election and revenue generation.

The decommissioning of about 20,000 remaining MILF combatants is also expected to be completed during the transition.

In a separate event in Manila last Tuesday, Japanese Ambassador to the Philippines Kazuhiko Koshikawa said "it is highly encouraging that the Marcos administration is prioritizing the peace process."

The Japanese government recently gave a $5 million grant to BARMM to help decommission MILF combatants and smaller armed groups.

A former MILF combatant said Marcos' visit was "historic" as it was also the first time he had set foot in Bangsamoro's seat of government since he ran for president.

In the May election, the MILF supported Marcos' closest rival and former vice president Leni Robredo.

The Moros had a history of atrocities committed against them by the country's military during the martial law of Marcos' namesake father and late dictator.

But Ahod Ebrahim, who was reappointed by Marcos as interim BARMM chief minister, expressed his commitment to Marcos' government.

"The peace process started during your father's time and it would be a fitting end to this long journey if we could complete the process during your administration," Ebrahim said.