Why did president lincoln want the union army to capture vicksburg?

If the north could capture Vicksburg (the last confederate stronghold) then the north could cut the south in two

Explanation: Hope this helps :)

it is the dominance of   the spanish language and roman catholic region in mexico, french being the official language of several african countries, and the existence of a western-style government in south asian countries

congress also has implied powers, which derive from the necessary and proper clause of the constitution and permit congress "to make all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states.