The political geography of George Orwell’s “Nineteen Eighty-Four” is divided into three areas: Oceania, Eurasia, and Eastasia. A large part of Africa and some of Asia is Disputed area, with the three superpowers constantly at war to get it.
Oceania’s political ideology is Ingsoc (Newspeak for English Socialism). The core territories are the majority of the Western Hemisphere, the British Isles, Australasia, and Southern Africa. The capital is London, with New York being another major city.
Eurasia’s ideology is Neo-Bolshevism. It’s territories are Continental Europe and Russia (including Siberia).
Eastasia’s ideology is the Obliteration of the Self (i.e. “Death Worship”). It’s territories include China, Japan, Korea, and Indochina.
The Disputed areas form “a rough parallelogram with its corners at Tangier, Brazzaville, Darwin, and Hong Kong”—Northern Africa, the Middle East, India, and Indonesia. The superstates capture and utilize slave-labor. Fighting also stakes places between Eurasia and Eastasia in Manchuria, Mongolia, and Central Asia. They battle each other over various Atlantic and Pacific islands.
In Emmanuel Goldstein’s Book “The Theory and Practice of Oligarchial Collectivism”, it explains that the super states’ ideologies are basically alike and that the public’s ignorance of them is a must so that they might continue hating them. The only references to the exterior world for the citizens of Oceania (the Outer Party and the Proles) are Minitrue maps and propaganda ensuring their belief in “the war”.
Oceania is at war with either one of Eastasia or Eurasia at all times. The sides may change at any time, but the citizens are led to believe that they have always been enemies with whichever side they are at war with at the present time. Thus, “We are at war with Eastasia. We have always been at war with Eastasia”. Sides may be changed with little warning and explanation. According to the Timeline (https://writingasiplease.wordpress.com/2012/11/13/timeline-to-nineteen-eighty-four/), Oceania had been at war with Eurasia from about 1980 to July of 1984, when it abruptly changed to Eastasia in time for Hate Week. Eurasia was now an ally and Eastasia was now their hated enemy for no reason at all. Thus is the consequence of being in a perpetual war.