Malaysia Prepares for Turbulent ASEAN Summit as Trump Takes Center Stage

The Unpredictable Presence of a US President at the Asean Summit

The upcoming Association of Southeast Asian Nations (Asean) summit, set to take place in Kuala Lumpur from October 26-28, has become a focal point for global attention. This event marks the first time since 2017 that a U.S. president will attend an Asean summit, and it is expected to bring together leaders from across the world. However, the presence of U.S. President Donald Trump has introduced a level of uncertainty that could overshadow the proceedings.

Just weeks ago, securing Trump’s attendance was seen as a diplomatic success by Malaysian Prime Minister Anwar Ibrahim. However, the initial excitement has faded, and now the situation is more precarious. The unpredictability of Trump's behavior raises concerns about how his presence might affect the summit's outcomes and the relationships among Asean member states.

Key Players and Global Interests

The guest list for the summit includes prominent global leaders such as Chinese Premier Li Qiang, Indian Prime Minister Narendra Modi, Brazilian President Luiz Inacio Lula da Silva, and South African President Cyril Ramaphosa. These leaders are not only representing their nations but also playing a crucial role in shaping the future of regional cooperation and trade.

John Low, Southeast Asia managing partner at global consultancy Roland Berger, highlights the potential risks associated with Trump's participation. "The worst-case scenario would involve the summit being overshadowed by sharp rhetoric or unexpected political theatrics, potentially straining ties among key partners or forcing Asean members to take sides," he said. This could lead to market instability and undermine the region's efforts to present a united front.

Trump's recent appearance at the United Nations General Assembly provided a glimpse into what the region might expect. During his hour-long address, he criticized the UN's failure to resolve conflicts and condemned America's European allies for allowing open migration, which he claimed threatened their heritage.

Trade and Economic Concerns

Since August, the U.S. has imposed tariffs ranging from 10 to 40 percent on Southeast Asia's export-driven economies, leading to revised growth forecasts. Asean member states are now united in their objective: to persuade Trump of the mutual benefits of predictable, open trade.

Analysts suggest that Anwar and his Asean peers hope Trump arrives in a conciliatory mood. "The discussions in Kuala Lumpur will help set the tone for how Asean economies engage with the United States in the months ahead," said Low. If Asean can present a clear, coordinated economic vision emphasizing open markets, resilience, and mutual benefit, it could mitigate potential trade frictions and attract renewed investment confidence.

However, unity has been elusive within Asean. The bloc's largest economies have already entered separate trade deals with Washington, promising substantial purchases of American goods in exchange for tariff relief.

Trump has further complicated matters by requesting to preside over the signing of a peace deal between Cambodia and Thailand in Kuala Lumpur, part of his quest for a Nobel Peace Prize. Despite his efforts, the prize was awarded to Venezuelan opposition leader Maria Corina Machado this year.

A brief but bloody border conflict erupted between Cambodia and Thailand in late July. A ceasefire, brokered by Malaysia on August 7, has mostly held, with Trump claiming credit for the truce, citing reduced tariff rates he extended to both sides. China, an ally to both Southeast Asian nations, also played an integral role in securing the peace.

Washington has reportedly urged Malaysia to bar Chinese officials from the ceremonial ceasefire signing, according to White House sources cited by US news site Politico. Diplomatic and government sources told This Week in Asia that a symbolic peace ceremony was being planned at Trump's request, but they declined to confirm whether Chinese representatives would be excluded.

Tensions along the Cambodian-Thai border remain high, with both sides trading blame for apparent ceasefire violations. Analysts caution that Thailand's new Prime Minister Anutin Charnvirakul, who has vowed to hold an election early next year, can ill afford to be seen capitulating to American pressure.

Pressed on Trump's desire to oversee a ceasefire ceremony, Anutin was blunt: "I only care about Thailand's interests, the safety of Thai people and the nation's sovereignty. Anyone winning prizes has nothing to do with what Thailand has to do."

Broader Regional Challenges

Other crises loom as well. Myanmar's military rulers, barred from Asean meetings since 2022 for failing to implement a peace plan following the previous year's coup, continue to wage war on their own people. A Malaysian government source close to Asean negotiations told This Week in Asia that the situation is "messy right now."

"Thailand has a new PM and will hold elections next year. We haven't even settled Myanmar," the source said, adding that reaching a consensus at the summit "will be tough."

Despite these challenges, Asean's stubbornness may yet prove to be an asset. Anwar has been unwavering in his insistence that the bloc will maintain its neutrality and resist the temptation to fall further into China's economic embrace amid punitive U.S. tariffs.

As summit host, Anwar is expected to acknowledge Trump's role in brokering the Cambodia-Thailand ceasefire by staging a ceremonial peace event—but not at the expense of alienating China, according to Singapore-based analyst Harrison Cheng of the global strategic consultancy Control Risks. If that ultimately dissuaded Trump from attending the summit, Anwar would at least be able to say he tried his best.