ASEAN & the African Union

Regional organizations of the Global South — modest in mandate, enormous in implication.

The brief

The Association of Southeast Asian Nations (ASEAN, founded 1967, eleven members since Timor-Leste joined in 2025) and the African Union (AU, founded 2002 as successor to the Organisation of African Unity, and covering every state on the continent) are the most ambitious Global South regional organizations of the postwar era. Neither approaches the integration of the EU — no shared currency, and only the AU has a supranational human-rights court, with limited reach and uneven compliance. Both have produced something more than mere talking shops. ASEAN's combined GDP, north of $4 trillion, still edges out India's. The AU has authorized peacekeeping missions, suspended members after coups, and launched one of the world's largest free-trade areas (AfCFTA, 2018), spanning 1.4 billion people. Modest in mandate, enormous in implication.

The two organizations handle the same problem — regional cooperation among states with very different sizes, regimes, and histories — through different conventions. ASEAN works on the consensus principle: every member state has a veto, decisions emerge from prolonged informal consultation rather than majority voting, and the organization deliberately avoids intervening in members' domestic affairs. This ASEAN Way — born of states only recently freed from colonialism and wary of any new overlord — has been criticized as toothless (it failed completely on the Myanmar coup of 2021, on the Rohingya genocide, and on Chinese assertion in the South China Sea) but praised for helping make major interstate war rare in a fractious region with deep historical animosities. Thai and Cambodian forces nevertheless clashed repeatedly in 2008–11 and fought far more heavily in 2025. The AU is more interventionist on paper — Article 4(h) of its Constitutive Act authorizes military intervention against genocide, war crimes, and crimes against humanity, a striking break from the old absolute-sovereignty doctrine that the OAU had treated as sacrosanct — but in practice has been constrained by funding, capacity, and member-state politics. Member contributions now cover more of the core budget, yet major peace operations, as in Somalia, still depend heavily on UN and EU money. The deeper contrast is that ASEAN protects sovereignty while the AU, in principle, qualifies it; yet both default to the same instinct, non-interference, when a crisis would demand confronting a fellow member. Both organizations have nonetheless been forums for Global South coordination on climate, trade, debt, and sovereignty issues that the older Western-led institutions have handled poorly; the AU won a permanent seat at the G20 in 2023, a recognition of demographic and diplomatic weight that no single African state had been able to claim.

Why nowASEAN's centrality in the Indo-Pacific is being challenged by US-China rivalry — both Washington and Beijing court ASEAN states individually, eroding the consensus that was the bloc's whole point. The AU is being challenged by a wave of coups across the Sahel and Central Africa (Mali, Burkina Faso, Niger, Guinea, Gabon), by Russian paramilitary influence — Wagner, and the Africa Corps that absorbed it — filling the vacuum, and by a series of conflicts (Sudan, Ethiopia) that have exceeded its peacekeeping capacity. Whether either organization can strengthen its institutional teeth, or whether they remain dependent on great-power forbearance, will shape Global South diplomacy for the next generation.