From the Website:
To understand the impact data can have, we must invite collaboration. Data.mil is an experiment, testing various ways of sharing defense-related information, gauging public interest and potential value, while protecting security and privacy. We will quickly iterate and improve on the data offerings you find here, with the ultimate goal of unlocking the value hidden inside defense data.
Our first offering, Theater History of Operations (THOR), is a painstakingly cultivated database of historic aerial bombings from World War I through Vietnam. THOR has already proven useful in finding unexploded ordinance in Southeast Asia and improving Air Force combat tactics. Our goal is to see where public discourse and innovation takes this data.
Hat Tip and Thanks: Federal News Radio