Korea was required to provide regular tributes to china, while japan was required to provide tributes less frequently
Borders, the countries want more land to represent them and have more power and if they have that then they also have more oil and water.
<h2><u>Answer:</u></h2>
The State of the Union Address (now and again contracted to SOTU) is a yearly message conveyed by the President of the United States to a joint session of the United States Congress toward the start of each schedule year in office.
The message regularly incorporates a spending message and a financial report of the country, and furthermore enables the President to propose an administrative motivation and national needs.
The location satisfies the prerequisite in Article II, Section 3 of the U.S. Constitution for the President to occasionally "provide for the Congress Information of the State of the Union, and prescribe to their Consideration such measures as he will pass judgment on important and convenient."
D). Vast empires.
Classical civilizations developed vast empires, whereas early river valley civilizations did not.
