During the US occupation of Japan after World War II, Japan's military was<span>dismantled by the US military.</span>
The United States would be very different if we still lived under the Articles of Confederation. Here are a couple examples
1) There would be no such thing as a federal income tax.- According to the Articles of Confederation, the federal government cannot tax citizens. This would greatly reduce the power of the federal government.
2) There would be no president- The Articles of Confederation did not have an executive branch, meaning there was no president under this constitution.
There are some ideas from the Articles of Confederation. This includes the ability of Congress to declare war. This is an important part of our society today, as it checks the power of the president and ensures that a majority of elected officials in the federal government want to go to war.
I think the text says that because, in order to be a citizen (or functioning member of that society) you need to hold yourself accountable for the mistakes you make and to correct yourself based on what you from them.