The implied powers refer to the U.S. government powers that are not explicitly stated in the Constitution but that are necessary to carry out their explicit powers or to lead the nation. This principle is stated in Article I, Section 8 of the Constitution, which states that Congress has the power "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, or in any department or officer thereof."
So, even though the power to create a National Bank is not explicitly stated in the Constitution, Congress had the right to create one in the 1800s as one of its implied powers because the National Bank would facilitate the accomplishment of purposes granted to the federal government in the Constitution, such as the collection of taxes and the maintenance of armed forces.
U.S. participation in NATO was a break with tradition, since the United States for the first time set itself up to automatically get involved in foreign conflicts--something that was very unnerving for a country of people who for most of American's history had been very isolationist.
Well for the north it boomed for the south they had people known as carpetbaggers coming into town trying to sell things but the south had like no money