On the morning of Monday, August 18, 2025, His Excellency Lieutenant General DOK Sopha, Rector of the National Defense University, had the honor of co-presiding over the 2025 Regional English Language School Seminar with Group Captain Tony Peck, Chief of the Australian Defence Attaché Office in Cambodia, and Commander Peter Russell, Commander of the Australian Defence International Training Centre, during the official opening ceremony at the Himawari Hotel in Phnom Penh. It is worth noting that this seminar was jointly organized by the College of Social Sciences and Languages of the National Defense University of Cambodia and the Royal Australian Defence Force to share and exchange best practices in English language teaching, with participants from ten countries: Australia, Cambodia, Indonesia, Laos, Malaysia, Mongolia, New Zealand, Timor-Leste, Tonga, and Vietnam.