They wanted to keep trade with china open. :)
Commodore Matthew C. Perry
Perry was warmly received by Japanese officials who had acquiesced and prepared a treaty that fulfilled many of Fillmore's demands. The Treaty of Kanagawa ensured the protection of American property and opened the ports of Hakodate and Shimoda to trade.
SUBURBANIZATION<span> describes the general trend of city dwellers to move from the city into residential areas in ever-growing concentric circles away from the city's core.
</span><span>Postwar suburbanization was the result of a complex web of governmental and economic conditions that scholars have yet to adequately explore. One of the most important of these factors is also one of the most overlooked: the anxiety-filled onset of the Cold War.
Though frequently cited in passing as an influence on certain aspects of suburbanization, the Cold War is rarely given the serious and microscopic treatment it deserves. It is understandable why historians and urbanists would shy away from a topic as complex as the war, about which much has been written outside a suburban context. </span>
The main difference between both nations was their political views. America was and is a capitalist country and as we know has many freedoms. The Soviet Union on the other hand was a Communist country that gave no rights to its citizens. The United States wasn't happy with that. Also, after WWll, the U.S. provided aid to war torn European countries with the Marshall Plan but the Soviet Union hated this because they wanted to take over those countries.