Oh, another IMPORTANT point.....as of right now, since you were only in for 4, you would not recieve both VA and Retirement (thats for those who made 20yrs). There is an offset. VA money is not taxable. Retirement is retirement and therefore taxable. I'm not the guru and I don't want to mess this up...but what I do know is that those who get VA money tend to take that full check (not taxable) and then they usually get some portion of their retirement (the amount is reduced by the amount of VA money you get). You can't get both. Not until the law changes.
I hope this helps.