In some ways Julia was far more acute than Winston, and far less susceptible to Party propaganda.
Once when he mentioned the war against Eurasia, she startled him by saying casually that in her opinion the war was not happening. The rocket bombs which fell daily on London were probably fired by the Government of Oceania itself, ‘just to keep people frightened’.
This was an idea that had literally never occurred to Winston.
War tends to bring people together. They put aside personal differences, feel committed to a cause.
To pretend a war unified the people against a common enemy. It was more necessary than the Two Minutes Hate.