What was the code phrase the Japanese used to initiate the attack on Pearl Harbor?

Itaka

Explanation:

b.   jim crow laws were enacted in northern states.

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.