Are you trying to say your navy is more powerful than Gallias?
And how is it that Bretonia is still a house with all the people they are fighting? Why does this argument apply to Kusari but not Bretonia, or the Corsairs, or Outcasts or GRN?
Add to that, by lore, Kusari is the second largest navy in Sirius, behind Liberty and Gallia, though they are not in Sirius.