How does the government treat the change in war situation that takes place in Oceania? chapter 9,part 2

At the start of this chapter, Oceania is at war with
Eurasia.  It is Hate Week and there have been six days of build up, all focusing on
hatred for Eurasia.  At the peak moment of Hate Week, however, there is a change --
Oceania is now at war with Eastasia and Eurasia is their
ally.

The government treats the change about as you might
expect -- they pretend it is not a change.  Remember, this is a government that does not
allow people to remember the facts about their past.  Everything the government says is
true and it can never be wrong.  Therefore, the government cannot admit things have
changed.  Instead, they go on with Hate Week as if nothing had
happened.

Here is a quote to show
this:

There
was, of course, no admission that any change had taken place. Merely it became known,
with extreme suddenness and everywhere at once, that Eastasia and not Eurasia was the
enemy.

Of course, the posters
and everything are wrong -- they have the wrong names and faces.  Therefore, the
government puts out the idea that Goldstein and his people had sabotaged things but
making it seem as if Oceania was at war with Eurasia.

readability="9">

The banners and posters with which the square was
decorated were all wrong! Quite half of them had the wrong faces on them. It was
sabotage! The agents of Goldstein had been at work! There was a riotous interlude while
posters were ripped from the walls, banners torn to shreds and trampled
underfoot.