The phrase ¨In order to form a more perfect Union¨ would be the best answer. Hope this helped
Helped make them a stronger nation but also a bigger target, the more countries you control, the tastier you look for a bigger country to take you out and take your puppeted countries.
I'm not completely sure, but it may have to do with time zones?
Mesopotamia to Asia and to the Americans because the very first cities were founded in Mesopotamia after the Neolithic Revolution. Mesopotamia cities included Eridu, Uruk, and Ur.