How did the united states assert itself as an independent nation?

One reason could be that in 1823 the United States developed a policy that they will not be tolerating any interference or colonialism by Europe anymore which was called “The Monroe Doctrine” because of the President James Monroe who first stated the doctrine. Though the term “Monroe Doctrine” was coined much later in 1850.

originally he was supposed to be dead but they wanted to continue the series so they brought him back to life.

c. troops marched forward in close formation against newer, more accurate weapons