Explain the “white mans burden”

'The White Man's Burden' was a poem by Rudyard Kipling, published in 1899. The poem addressed the United States' shift from isolationism, a foreign policy where countries keep to themselves, to imperialism, a foreign policy where countries expand their influence through peace or force.

powers  are  denied  to the  national governmentin three distinct ways: some  powers, such as the  power  to levy duties on exports or prohibit the freedom of religion, speech, press, or assembly, are expressly  denied  to the  national government  in the  constitution.

c) troops march forward in close formation against newer, more accurate weapons