"The Operational Environment (OE) is a combination of conditions and variables that impact a commander's decision-making and his/her ability to employ capabilities. The OEs of today and the future will be marked by instability. The combination of this instability with the dizzying advances being made in technology and the increased velocity of human interaction means that the OE will present an array of threats that will be lethal and multi-domain (land, sea, air, space, and cyber)." Authors: Mr. Ian M. Sullivan, Mr. John C. Bauer, Mr. Eric L. Berry and Mr. Luke Shabro.