For a majority of northerners, the MOST outrageous part of the several objectionable parts of the U. S. Supreme Court Chief Justice Roger Taney's majority opinion (decision) in the Dred Scott case was that the Court ruled that

a king decides to declare war on a neighboring country without the input of any advisers

possible the invasion of room could have been avodiable but the people of rome were to stubboron and to wealthy the kingdoms saw them as a threat if they dialred it downa   bit ten i dont think they wouldnt failed   china was not iacvvdoaible they caused war to much and were out of hand therefor that must have happened india i dont really know it could of