The paper analyses implications and challenges of Germany’s upcoming military deployment in Lithuania. A permanent stationing of brigade-sized military unit on NATO’s Eastern frontier represents a major change in its force posture and a significant shift in Germany’s defence policy. Despite the official German position that the implementation of its military commitments is contingent on Lithuania’s timely improvement of its host nation support infrastructure, the paper suggests that the speed, quantity, and structure of Germany’s deployment also depends on the progress made in rearming the Bundeswehr and its defence policy priorities.