Once upon a time, the idea of the New World Order was a conspiracy theory promoted by infamous organisations such as the League of Rights, spoken about by Eric Butler and Jeremy Lee. It was a plan to erode national sovereignty and put in place a world government, according to one plan, based around the UN. Over the decades much of he ground work for this has been done, from eroding traditional immigration policies, to globalising finance, to law being subject to international conventions. Now the globalists of the Great Reset of the World Economic Forum (WEF) are gloating about the final stages of this, where technology will be used to push to the final frontier of globalism. Here is a neat, but horrible summary.
https://www.infowars.com/posts/world-government-summit-2022-asks-are-we-ready-for-a-new-world-order/