From 5-7 November 2014, Khon Kaen University’s Faculty of Public Health partnered with several other organizations in academia and government to organize the 6^th International Conference on Public Health among Greater Mekong Sub-Region Countries. The theme of the conference was titled “Health Service System in a Borderless Community: Human Resource Development for District Health System” at Sirikunakorn Building, Khon Kaen University and Pullman Raja Orchid Khon Kaen. The conference coincided with the annual Loi Krathong festival, which was used a theme for the event. Opening ceremonies included local traditional dances and music to mark the celebration. The conference aimed to strengthen collaboration on addressing public health challenges among the countries of the Greater Mekong Sub-region (GMS) and beyond and to serve as a platform for health personnel and academic researchers to share and exchange scientific and professional experience on public health from these countries. The more than 500 participants were honored to hear from Sir Richard Peto, a renowned professor of Medical Statistics and Epidemiology at the University of Oxford, who has been instrumental to our understanding of the causes of cancer. As Keynote Speaker, he shared some of his recent research exploring mortality trends of the past 40 years across every country with data collected by the World Health Organization.