War games or preparing for eventual war?

We do not always get the full picture on much I am sure, so some leaps in what we do read become necessary.  I think they are planning for a response to the US getting hit simply by their statement.  China and Russia together could be formidable.  They certainly do not like the US and both these countries have delusions of grandeur that will probably be realized.  Russia has already showed that they can get close enough to the US with ships that could launch whatever they want on our West Coast.  So, are the war games really a beating of the chest or preparation for more?

I find the purpose statement curious as stated: to “demonstrate flexibility and responsiveness in training scenarios throughout the continental U.S.” So, fighting here as opposed to there? Defense, not offense? Ponder that for a while.