Often dubbed the "five sided puzzle palace", the Pentagon didn't earn the nickname because it's an easy...
Cathal O'Connor
Cathal O’Connor served 32 years in the Navy, commanding at the warship, squadron, and strike group level. In five tours in the Pentagon, he served on the staffs of the Chief of Naval Operations, the Chairman of the Joint Chiefs of Staff, and the Secretary of Defense. He works overseas in the National Security sector.