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Philippines, Vietnam upgrade ties, say South China Sea peace ‘non-negotiable’

By Thomson Reuters May 31, 2026 | 9:34 PM

MANILA, June 1 (Reuters) – The Philippines and Vietnam are elevating their ties to an enhanced strategic partnership, reaffirming that shared commitment to peace and stability in the South China Sea is “non-negotiable,” President Ferdinand ​Marcos Jr said on Monday during a state visit by ‌Vietnam’s top leader To Lam to Manila.

Marcos said there is no doubt the Philippines and Vietnam share a common interest in maintaining peace, stability and a rules-based order in their region, adding that the partnership has become more important as the region navigates an ‌evolving and ​uncertain global environment.

• Marcos said the deeper ties ⁠would be “defined by wider pathways ⁠for cooperation, stronger political and defence cooperation, and closer linkages between the Filipino and Vietnamese people.”

• Vietnam is the Philippines’ lone strategic partner in the ASEAN region, after they upgraded ties 10 years ago in a ​show of unity against China.

• Marcos said Manila and Hanoi reaffirmed that maintaining peace, stability, and the freedom of navigation and overflight in the ⁠South China Sea “remains non-negotiable.”

• He added that both ⁠countries “remain resolute in their commitment to the peaceful resolution of ​disputes,” grounded on international law, particularly the 1982 UNCLOS treaty and the 2016 ​South China Sea arbitral award.

• To Lam said the Philippines is ‌an “important regional partner of Vietnam”, citing a similar vision and strategic interests, and strong commitments for peace and stability. “We always want to bring the strategic partnership with the Philippines to a new high.”

• To Lam said he and ⁠Marcos agreed to have closer coordination to “effectively respond” to regional and global challenges.

• The Philippines and Vietnam signed deals on defense cooperation, information and technology, tourism and ⁠education.

• Speaking after the ‌meeting with Marcos, To Lam said Vietnam and the ⁠Philippines agreed to enhance security and defence cooperation.

• He ​said they ‌will also seek to boost economic ties and will ​work together ⁠to ensure food security.

• Vietnam is the largest supplier of rice to the Philippines.

• The Philippine and Vietnamese coast guards held their first joint exercises in 2024, despite overlapping claims to some South China Sea features.

(Reporting by Mikhail Flores and Nestor Corrales; Additional reporting by Khanh Vu in Hanoi; Editing by John ​Mair and Thomas Derpinghaus)