At seventeen, Dai chose a life as a soldier. When he was eighteen, he went on a mission to Afghanistan for the first time. It was his goal to become a commando and at the age of twenty he completed the grueling commando training. There his career began with the Dutch Special Forces. He served in the Korps Commandotroepen for ten years and went on missions to various conflict zones. As a Special Forces Medic, Dai has always had a deep interest in physiology, psychology, biology and neurology. Over the years he has built up a lot of knowledge in the field of Mental Strength. He wanted to share this knowledge with a wider audience and decided to write a book about it. In addition to the book, Dai has developed a model with which organizations and individuals can strengthen their Mental Strength. Dai is one of the head instructors in the successful TV program Kamp van Koningsbrugge.
