@BillRM,
Obama is on record now that he thinks that the traditional military retirement system should be scrapped, he thinks that it should not take anything like 20 years to get vested and he wants to make is look more like a 401 k plan than the old style defined benefits plan that it is now. However this is a change that would not effect large numbers of military for over 20 years. His current plan has some increase in medical cost for retired and active duty families right now, but nothing on the order of what some are calling for.
Not sure how the Obama plan will go down with the brass, letting people walk at the 5 year mark with some retirement causes problems with keeping people around till 20 or 25 years, as soon as the best get a fab offer in the private sector they will be gone. Military does not pay very well, but the deferred pay is pretty good, this reform of the retirement system might vastly drive up the active duty pay required to keep good people. Another thing to keep around is that it takes a lot of years and a lot of money to train up a top notch soldier and leader, unlike the private sector who expects people to come out of college (that the firm paid nothing for) ready to produce the military needs to invest a wad of cash at the front end, so lots of short timer's is a big problem. The military weapons systems are now complicated, it takes several years to train people to use them well....do we really want to encourage walking after only 5 years??
It looks to me like a knee jerk reaction on the part of Obama as he sees in the military retirement system something that he mostly no longer sees in the rest of the society, so he assumes that the military system is outdated. The real problem I fear is what has always been feared about Obama, that he nether cares for nor understands the military and what is required to keep it strong.
http://www.armytimes.com/news/2011/09/military-tricare-benefits-cuts-obama-091911w/