VA Disability Part 3: claim filed, what happens next?

Your claim is filed, the evidence is submitted,  now what?  What happens next? we previously discussed in part 1: type of disability claims, How to file a claim,  and in part 2 we discussed evidence, types of evidence, what is needed for your claim.  Today we are going to talk about what happens next.  Your claim is filed, your evidence is submitted,  what happens next?