This book assesses the past, present, and future potential of these niche diplomacy initiatives undertaken by Japan and South Korea, largely in Southeast Asia. The book concludes that not only do such nontraditional security channels have the potential to achieve meaningful change for partners and beneficiaries, but they could also form the basis of future confidence-building and security cooperation between Japan and South Korea, which have to date achieved little in the field of traditional security cooperation, despite facing many shared challenges