After Gulliver captures the Blefescudian ships, what does the emperor of Lilliput want Gulliver to do?

The emperor requests that Gulliver go back to the enemy's shores and do his best to destroy what is left, turning the empire into a province. Gulliver thinks that this action is going too far and declines the request. Three weeks after Gulliver's victory, an embassy from Blefuscu arrives offering peace, which the emperor accepts.