As the bugger war ends, suppressed conflicts break out on Earth. In the novel, what is the unifying effect of having a common enemy?

In his dystopian classic 1984,George Orwell wrote, "War is Peace". While a nation is at war, there is usually little resistance within the country. History has shown a general patriotism for respective nations during a world war. While the Buggers are perceived to threaten mankind, there is general support for the war effort. The general public does not question institutions like battle school that subjugate and brainwash small boys.