Summary of united states v. o'brien case and ruling

was a decision by the Supreme Court of the United States, which ruled that a criminal prohibition against burning a draft card did not violate the First Amendment's guarantee of free speech. Though the Court recognized that O'Brien's conduct was expressive as a protest against the Vietnam War, it considered the law justified by a significant government interest unrelated to the suppression of speech and was tailored towards that endi hope this helps

Explanation:

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".