Association of Southeast Asian Nations

The Association of Southeast Asian Nations (ASEAN) was established on 8 August 1967 in Bangkok by Indonesia, Malaysia, the Philippines, Singapore, and Thailand through the signing of the ASEAN Declaration (Bangkok Declaration). Membership later expanded to include Brunei Darussalam (1984), Vietnam (1995), Laos and Myanmar (1997), and Cambodia (1999), bringing the total to ten member states. Timor-Leste was granted in-principle approval for membership in November 2022.

ASEAN's foundational principles—non-interference in internal affairs, consensus-based decision-making, and peaceful dispute settlement—are often referred to collectively as the "ASEAN Way." These norms were codified in the Treaty of Amity and Cooperation in Southeast Asia (TAC), signed in 1976, and reaffirmed in the ASEAN Charter, which entered into force on 15 December 2008 and gave the organization legal personality.

The bloc operates through three community pillars established under the ASEAN Community framework launched in 2015:

• ASEAN Political-Security Community (APSC)
• ASEAN Economic Community (AEC)
• ASEAN Socio-Cultural Community (ASCC)

The Secretariat is headquartered in Jakarta, Indonesia, and is led by a Secretary-General appointed for a five-year term. The chairmanship of ASEAN rotates annually among member states in alphabetical order.

ASEAN convenes several major external dialogues, including the ASEAN Regional Forum (ARF) established in 1994, the ASEAN Plus Three (with China, Japan, and South Korea), and the East Asia Summit. In November 2020, ASEAN members signed the Regional Comprehensive Economic Partnership (RCEP), the world's largest free trade agreement by GDP coverage at the time of signing.

Persistent challenges include managing competing claims in the South China Sea, responding to the post-2021 political crisis in Myanmar (addressed through the Five-Point Consensus adopted in April 2021), and navigating strategic competition between China and the United States. Critics argue that the consensus rule limits ASEAN's capacity for decisive collective action, while supporters view it as essential to the bloc's longevity and cohesion.