The Red Fleet is the mobile arm of the armed forces of the Peoples' Republic of Ozsland. In concert with the immobile fortresses and garrisons of the Red Guard, it defends the Republic from outside threats, while also "continuing and expanding the Revolution" in foreign lands. Doctrinally, it prefers airships over landships (the latter having difficulty with Ozsland's rugged terrain) and emphasizes a quantitative advantage with strictly budgeted designs.

The country itself was only recently founded by revolutionaries who overthrew the king and nobility. While the enormous wealth divide that (combined with a famine) sparked the revolution has been greatly shrunk, and the state now guarantees that everyone is fed and housed, all is not well: leadership is a de-facto oligarchy of established political and military officers rife with nepotism; the state decides where people live and work, and moves them accordingly; art and theoretical science have all but halted (though applied science continues); and dissent is viciously punished.