Why did the United States launch the war on terror?

The wars launched by the United States after the Cold War, including the wars in Afghanistan and Iraq, took a long time and cost a lot. Instead of bringing peace, stability and prosperity to these two Middle Eastern countries, they have created more division, turmoil and poverty.

Both wars were fought in the name of anti-terrorism. The 9 1 1 incident greatly shocked the United States. At that time, the US Treasury was full, the comprehensive national strength reached its peak, and unilateralism prevailed. In order to show the prestige of the world's only superpower and respond to the domestic people's anxiety about security, the United States urgently needs to take revenge.

Topographic features of the United States

The topography of the United States is varied, with high terrain in the west and low terrain in the east. There are coastal plains on the east coast, which are wide in the south and narrow in the north, extending to New Jersey and Long Island, and there are also some glacial sedimentary plains. Behind the coastal plain are undulating foothills, which extend all the way to the Appalachian Mountains in North Carolina and New Hampshire, with an altitude of1.830m..

To the west of the Appalachian Mountains is the central plain of the United States, with relatively flat terrain. The Great Lakes and the Mississippi-Missouri River Basin are also located here. To the west of the Mississippi River, the terrain of the internal plain began to rise, and finally it entered the great plain with a vast area and few topographical features in the central United States.