国际关系中的哲学博士（Ph.D.）计划训练学者们在国际事务和政治科学的关键领域进行前沿的跨学科研究。深入，动手实践和全面的理论研究相结合，可以帮助我们的博士学位。学生发现有意义的问题，这些问题最终将影响他们的未来研究和职业。在任何给定时间，大约有60名学生从事课程或研究工作。该计划是Fletcher社区不可或缺的组成部分。弗莱彻（Fletcher）博士候选人与我们享誉全球的教职员工一起，获得了进行研究所需的理论和实践技能，这些研究将有助于塑造有关国际关系的未来论述。完成学位后，我们的毕业生继续在学术界，研
The past three decades have witnessed a major transformation of humanitarian action. These changes have triggered heated debates about philosophical, analytical and operational issues within the humanitarian community. The range of humanitarian actors has broadened to include the military and, increasingly, for-profit firms. A range of humanitarian actors and agencies has emerged from the Middle East and the global South, alongside or outside of the traditional Western, UN-led humanitarian system. Long-held principles are questioned or discarded, with humanitarian action no longer seen by many belligerents as either neutral or impartial. Some 400,000 people are employed in humanitarian work around the world today. The agencies they work for spend close to 30 billion/year and they are present, on the ground in all of the political, economic and environmental crisis events we are familiar with. This field of study seeks to equip students with an understanding of both how these crisis environments evolve, how communities caught up in them survive and what role the international aid system plays in that survival. Students will take away from the field an understanding of the nature of humanitarian crises, the structure and functioning of the humanitarian (eco)system, and an understanding and critique of the humanitarian aid system. Various skills-related courses complement a core curriculum of humanitarian studies courses.