Proclamation 216 was made after Islamic State (IS)-linked Maute group militants attacked and occupied Marawi City on May 23. The president also suspended habeas corpus in Mindanao on May 24.
- Extending martial law in Mindanao would likely see further communist guerrilla attacks.
- Philippine security links with Australia, Indonesia, Malaysia and the United States will deepen.
- Appeals against the Supreme Court's decision could be lodged but are unlikely to work.
- The military will gain increased political influence through martial law.