The goal of Hydrogen Against Hunger is to address the ongoing food crisis in the Horn of Africa through the development of Hydrogen Valleys. In such regions, large scale production of hydrogen will entail large scale water desalination,making it possible to extend access to (affordable) water for the regional agricultural sector. Moreover, green ammonia produced from hydrogen is a feed stock for fertiliser production, which is direly needed to improve agricultural yields. Making more water and fertiliser available for regional use, combined with investments that boost agricultural innovation, climate resilience and dry land restoration, can make a great difference in the region's food security. Hydrogen Valleys and the economic prosperity that they bring to the region can play a key role in achieving this.