The Battle Frontier (abbreviated name, Battle 25) is a variable stealth space attack aircraft carrier connected at the tip of Island 1 and charged with guarding the Macross Frontier convoy. Much larger than the Macross 7 class, the Battle 25 was designed for enhanced fighting strength and command abilities to accommodate the much larger scale of the emigrant fleet and the accompanying naval fleet. These changes resulted in the Battle 25 being built over 200 meters longer than the Battle 7 class and the operational weight was doubled to 16,550,000 metric tons.