European leaders focusing on boosting defence spending have raised concerns among climate policy advocates about potential cuts to green initiatives. However, this shift also presents opportunities for the struggling clean hydrogen sector, as funds could be redirected to bolster security and resilience. Countries like Germany are considering allocating part of the increased budget towards climate protection, benefiting sectors like hydrogen. The synergies between hydrogen and defence industries are being highlighted, with a potential for accelerating technological advancements and cost reduction. Notably, renewable hydrogen production and fuel cell systems are seen as key elements in enhancing energy independence and resilience of critical infrastructure. Partnerships between defence companies and hydrogen technology firms are exploring innovative applications for hydrogen in military settings, such as noiseless and undetectable military vehicles. The potential for hydrogen in defence is further supported by the concept of lead markets, which could introduce green procurement criteria, pushing for low-emission products. Overall, the intersection of European defence priorities and clean energy solutions like hydrogen offers a promising pathway for strategic resilience and sustainable development.