Green ammonia is highlighted as a significant advancement in the shift towards a sustainable energy landscape, particularly within the burgeoning hydrogen economy. With its enhanced energy density, cost-effectiveness, and absence of CO2 emissions for consumers, green ammonia emerges as a promising alternative to traditional fossil fuels. The article discusses the strategic importance of ammonia in various sectors such as shipping, land-based transport, and power generation, emphasizing its role in bolstering the security of energy supply in Europe. The CAMPFIRE alliance, established in 2018, spearheads the development of green ammonia technologies across the value chain, involving partners from diverse industries. Through collaborative projects, innovative solutions like ammonia-fueled propulsion systems are being explored, showcasing the alliance's commitment to driving sustainable practices in energy production and utilization. Furthermore, the alliance's focus on ammonia utilization in marine vessels and the development of ammonia-powered engines signifies a significant step towards achieving zero-emission shipping. By leveraging green ammonia as a key energy vector, the alliance aims to pave the way for a carbon-neutral future and mitigate the environmental impact of energy-intensive industries.