# ASEAN Treaty of Amity and Cooperation 50th anniversary

> Live situation record from CLSTR: https://clstr.news/situations/asean-treaty-of-amity-and-cooperation-50th-anniversary
> Updated: 2026-08-23T03:20:36.000Z. Sources: 2. Developments: 2.

President Ferdinand Marcos Jr. hosted a gala dinner at Malacañan Palace to commemorate the 50th anniversary of the Treaty of Amity and Cooperation (TAC). Originally signed in 1976 by Indonesia, Malaysia, the Philippines, Singapore, and Thailand, the treaty was described by Marcos as a “cornerstone for peace, stability and mutual respect in Southeast Asia.”

The anniversary also marked the formal accession of four European nations—Sweden, Poland, Romania, and Lithuania—to the TAC, an event Marcos noted as evidence that the treaty’s principles continue to attract international partners.

## Timeline

### 2026-08-23: Philippine Taekwondo Association celebrates 50th anniversary

The Philippine Taekwondo Association celebrated its 50th anniversary, with President Ferdinand Marcos Jr. receiving an honorary 9th Dan for his support of the sport's development in the country.

2 sources. https://clstr.news/cluster/philippine-taekwondo-association-celebrates-50th-anniversary

### 2026-07-27: President Ferdinand Marcos Jr. Marks 50th Anniversary of ASEAN Treaty of Amity and Cooperation

President Marcos marked the TAC's 50th anniversary, hosting a gala in Manila and welcoming four European nations—Sweden, Poland, Romania and Lithuania—as new parties to the treaty.

13 sources. https://clstr.news/cluster/president-ferdinand-marcos-jr-marks-50th-anniversary-of-asean-treaty-of-amity-and-cooperation

---
Cite as: ASEAN Treaty of Amity and Cooperation 50th anniversary. CLSTR, https://clstr.news/situations/asean-treaty-of-amity-and-cooperation-50th-anniversary