What does the phrase "One shot, One Kill" refer to in the Marine Corps?

The phrase "One shot, One Kill" is a well-known creed among snipers in the Marine Corps, emphasizing the importance of precision and efficiency in shooting. It reflects the expectation that a trained sniper is capable of hitting their target with a single shot, indicating a high level of skill, discipline, and focus. This motto is not just about the act of shooting; it also embodies the sniper's responsibilities, including patience, observation, and ultimate accountability for each shot fired. By adhering to this creed, snipers demonstrate their commitment to their role and the critical importance of minimizing collateral damage in their operations.

While other options may relate to different aspects of military service, such as general infantry mottos or specific historical references, the unique emphasis on the sniper's role and mindset makes this phrase particularly relevant and specific to that branch of the Marine Corps.