The name of the agreement is the Antarctic Treaty.
About 2% of the continent is free of ice.
Antarctica
Two percent of the Antarctic continent is free of ice.
Antarctica is a continent.
Antarctica is a continent.
Antarctica is a continent.
Antarctica is its own continent.
The southern most continent is Antarctica.
About two percent of the continent is ice-free.
There is no agreement that 'splits up' Antarctica. Antarctica -- and all of earth south of 60 degrees South Latitude -- is governed by the Antarctic Treaty. This treaty negates all previous land claims and prohibits new land claims on the continent.
Basically it was an agreement between 50 nations allowing them to use the continent Antarctica for scientific research purposes. No military was allowed to go on this continent.
Antarctica is the continent that does not have any countries. It is governed by the Antarctic Treaty System, which designates the continent as a scientific preserve with free access for research purposes.