More information has come in on the Invincible series of exercises, following on the Invincible Shield exercise I wrote about yesterday. Two inscrutable documents, called Military Interdepartmental Purchase Requests (MIPRs), now make reference to Invisible Sentry 15, held at Ft. Bragg, North Carolina. The Purchase Requests allocate more than $350,000 to ICE Corp. (Intelligence, Communications and Engineering, Inc.) to prepare the documents and supply role players for this mysterious Joint Special Operations Command war game. One senior inter-agency role player will be paid $24,005.00 to participate. That would be some retired general to "play" a CIA or White House official. Pretty sweet gig for an exercise that only lasted 10 days.

The full MIPRs can be seen here.

I still don't know what these exercises are really all about. Anyone out there able to decipher these two documents?

You can contact me at william.arkin@gawker.com, and follow us at @gawkerphasezero. If you are into the theater of being underground, you can anonymously deliver tips through the Gawker Media SecureDrop. I've also got a book on drones coming out in July called Unmanned: Drones, Data and the Illusion of Perfect Warfare. I'm open to your input and your questions, tough questions.