Hydrogen is increasingly recognized not only for its role in decarbonisation but also for its potential to address energy security concerns and reduce dependency on diesel. In a military context, the UK Ministry of Defence is investigating how hydrogen can be integrated into operations to enhance output and decrease reliance on traditional fuels. This shift towards hydrogen as an energy vector is gaining traction among policymakers and industry leaders who emphasize the need to leverage its benefits in bolstering energy security, especially amidst the current geopolitical challenges. Flight Lieutenant Richard Griffiths, as the Project Lead for the UK MOD's Strategic Command, highlights the strategic importance of hydrogen in military applications. The recognition of hydrogen's multifaceted advantages beyond carbon reduction underscores its growing relevance across sectors beyond environmental concerns.