This report for JICA outlines the fragile states agenda as it relates to international development and aid. Part I provides a background on fragile states in five sections. Part II consists of the donor case studies, analysing how the US, the UK and Germany have defined and implemented their FS agendas. The report turns to the case studies on Afghanistan, Nepal and Cambodia in Part III. Part IV offers some conclusions and next steps for JICA. Finally, a variety of annexes that may be of interest for further reading are included in Part V.