Explanation:
Necessary and Proper clause – Congress has the power to make laws necessary and proper to enact enumerated powers. The states had more power than the national/central/federal government. Federalism – The US Constitution divides power between the Federal/National government and state governments.
Supreme Headquarters Allied Expeditionary Force (SHAEF; /ˈʃeɪf/ SHAYF) was the headquarters of the Commander of Allied forces in north west Europe, from late 1943 until the end of World War II. U.S. General Dwight D. Eisenhower was in command of SHAEF throughout its existence.