Southeast Asia in May 2026: the most important developments in politics
In May 2026, Southeast Asian politics was dominated by the impeachment of Philippine Vice President Sara Duterte. Articles of impeachment reached the House plenary early in the month, where Adiong said 95 percent of the 69 Lakas-CMD members voted in favour. Senator Lacson said nothing would stop the trial, and Senator Gatchalian said the Senate could convene as an impeachment court on May 13. On May 11 the Senate ousted Francis Escudero as the impeachment vote loomed, and Rodrigo Duterte was reported to have outflanked President Marcos with a surprise plan to sink the proceedings. The presidential palace challenged Senator Imee Marcos to present evidence for her bribery claim, and law deans rejected the idea of the Supreme Court handling the case. Analysts noted that Duterte's allies failed to rally significant mass support. The Senate opened the trial on May 18.
In Thailand, former Prime Minister Thaksin Shinawatra was released on parole on May 11 after serving eight months for abuse of power, greeted by family and supporters. Anutin said Koh Kood remains Thai as a dispute over a memorandum with Cambodia known as MOU 44 deepened, and vowed that a 400-billion-baht loan decree would proceed despite a court challenge. A court acquitted an opposition politician accused of royal insult.
On regional diplomacy, Marcos visited Japan at the end of the month, where Tokyo and Manila elevated ties and pushed for closer security cooperation; Chinese analysts warned that hyping a China threat narrative risks fuelling confrontation. Marcos also said the Philippines would be involved in any Taiwan conflict. Vietnam's To Lam visited Thailand from May 27 to 29 and, in his Shangri-La Dialogue keynote, warned of three global crises and set out solutions.
Elsewhere, Myanmar allowed a legal team to meet Aung San Suu Kyi after her sentence was reduced to house arrest, and Min Aung Hlaing was set to make his first foreign trip since taking office, to India. In Malaysia, Anwar Ibrahim said snap elections could be held if the unity government collapses, while his critic Rafizi Ramli joined a new party.
by WorldBrief & Maksim Micheliov | AI-generated summary
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