"Parabellum" is a term derived from the Latin phrase "Si vis pacem, para bellum," which translates to "If you want peace, prepare for war." It is often associated with military contexts, emphasizing the importance of readiness in the face of potential conflict. The term has been used in various forms, including as a name for firearms and ammunition, notably the 9mm Parabellum cartridge. In popular culture, "Parabellum" is also recognized as the title of the third film in the John Wick series, released in 2019. The film continues the story of the titular character, played by Keanu Reeves, as he navigates a world of assassins and high-stakes action, further exploring themes of loyalty, revenge, and survival.