The three most important problems was that it gave to much power to the states (weak central government), it did not give the federal government the power to tax, and congress couldn't regulate trade.
<span>Helped people to have better lifes
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Under the feudal system the land was usually officially owned by the King of an area, however, it was given to nobles or in this case knights in exchange for money and loyalty. These nobles had to pledge their support for the King and their willingness to fight if there was ever a conflict that necessitated their support.
b) show strength as President of the Union that wanted the Southern States back.
Hope I helped! ( Smiles )