1984 depicts warfare as a necessary tool and symptom of a totalitarian state. Oceania, one of the three superstates of the world, is in constant warfare with one of the other two. This is necessary, as warfare keeps citizens in constant flux and fear – they then willingly submit to the control of the Party. Only after this submission can the Party regulate supply and demand to ensure classism, and ultimately, power.
It is necessary for Oceanians to believe that Oceania is in a constant state of warfare with the other superpowers, because the presence of a common enemy prevents internal conflict.
The constant bombing and warfare in Oceania are simulated by the Party for the purpose of manipulating its constituents, as evidenced by subtle inconsistencies in the book.