<span>Good Morning!
The Treaty of Ghent returned all the lands conquered to its former rulers, and, of course, to establish the beginnings of the Canadian border.
Neither side gained nor lost territory, and both sides reverted to their positions before the war.</span>
As time has pass people has learned more about changes of environment
The assimilation of Native Americans was a goal of the federal government.
During the late 1800's, the federal government had the goal of assimilating Native Americans into mainstream America. In this case, the government wanted Native Americans to act more like white farmers (which made up a majority of America). This resulted in several different laws and policies that would help enforce this idea. This includes the Dawes Act and the creation of Indian Boarding Schools.
Indian Boarding Schools were schools were Native American kids were sent to learn more about the English language, American culture, etc. Unfortunately, this system had many negative effects as it resulted in the destruction of some Native American cultures and languages.
You didn't really provide any options here but we can safely say that Alexander's army (if you're talking about the army of Alexander the Great) was alert because they were trespassing in foreign terain where they could be attacked at any time.
Countries trapped behind a large impenetrable wall