The BLiTZ System, standing for "Battle of Live Tactical Zones", is the innovative gameplay system that debuted in and is used by the Valkyria Chronicles series of video games, successfully melding together turn-based strategy with 3rd person shooter tactics.

The BLiTZ system is used during combat scenarios, splitting the action between an overhead Command Mode and third-person Action Mode. By selecting allied units during Command Mode, using Command Points in the process, said units can move and perform actions until their Action Points run out. When the player has exhausted their available Command Points, or volunteers to pass control without using all of them, the Player Phase ends and the Enemy Phase begins. This progresses back and forth until the battle's victory conditions are achieved or the player is defeated.

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