The Philippines will lead the commemoration of the 50th anniversary of the Treaty of Amity and Cooperation in Southeast Asia (TAC), a landmark peace agreement that has shaped regional diplomacy for five decades. As the 2026 chair of the Association of Southeast Asian Nations (ASEAN), Philippines plays a key role in honoring this historic milestone.
Signed in 1976 during the presidency of Ferdinand Marcos Sr., the TAC included the five founding ASEAN members—the Philippines, Indonesia, Malaysia, Singapore, and Thailand—all committed to fostering peaceful relations in Southeast Asia. Over the years, the treaty has grown into a global diplomatic framework, now recognized by 58 High Contracting Parties worldwide.
Five Decades of Promoting Peace and Cooperation
For 50 years, the TAC has served as ASEAN’s diplomatic backbone, promoting principles such as mutual respect for sovereignty, non-interference in internal affairs, and peaceful settlement of disputes. These principles have helped sustain regional stability and create a secure environment that supports trade, investments, and economic development across Southeast Asia.
The treaty has also strengthened ASEAN’s global partnerships, allowing countries outside the region to engage constructively with Southeast Asia through diplomacy rather than conflict.
Commemorative Events Under the Philippines’ ASEAN Chairship
The golden anniversary will be highlighted through the unveiling of the official TAC 50th anniversary logo on ASEAN’s digital platforms. The main commemorative ceremony is scheduled for July 24, 2026, coinciding with the 59th ASEAN Foreign Ministers’ Meeting (AMM) and related diplomatic activities.
The celebration also underscores the Philippines’ continuing leadership role in advancing regional cooperation, dialogue, and peacebuilding as ASEAN moves toward deeper integration and collaboration.
