When I joined the Marine Corps in 87 I swore "to defend the constitution of the United States  from foreign and domestic", does this mean that everyone in the U.S. military is failing to keep his or her word by alowing an assault on the second amendment by known parties ? I'd love to hear some feed back from other members and their thoughts on this topic

In the strictest sense your oath is to protect the constitution from [i]ANYONE[/i] who would destroy it.  I don't think I would go so far as to say anyone in the military has violated their oath.  Now certain politicians I have no problem saying that about (Feinstein, Schumer, McCain, Moynihan) just to name a few.

The standing military is actually the last in line to defend the constitution. First and foremost are the people themselves formed as militia. BUT, these days the "m" word has been demonized as the enemy of the state, through state sponsored domestic terrorism! Strong words but none the less true. Sedition, conspiracy, seditious conspiracy, and the use of public funds to deny the power of the constitution of the United States of America or the constitutions of the several states is insurrection! See: http://www.coin-army-usa.org for more on this hot topic.

Further, contained in the web cited above is a letter to the Sheriff Of Palm Beach County touching on the issue of honoring his oath he pleged to the people when taking office!

It is a good read, though many in a complacent stuper will think otherwise!