Warfighters and mission partners need the right information at the right time to enable informed decision-making and mission execution across all levels of operation in a complex operational environment (OE). Modeling and simulation (M&S) support to planning and execution is a Joint Command and Control (JC2) operational priority. Mining and extracting mission relevant OE data from the vast distributed collection of global data is a huge technical challenge. Machine processing is needed to aid decision making; however, integrating disparate OE source data into purposeful data sets is labor intensive, time consuming, and cannot be consistently accomplished within mission critical timelines. The Operational Environment (OE) Unified Data (UD) alliance is collaborating to leverage, reuse, and horizontally integrate data service capabilities as enterprise solutions in the Joint Information Environment (JIE) and Mission Partner Environment (MPE). The military services and communities (Experimentation, Acquisition, Test and Evaluation, Training, Planning, Intelligence, and Analysis) recognize the value of a holistic approach for improving our warfighter's information superiority. Information superiority is the operational advantage derived from the ability to collect, process, and disseminate an uninterrupted flow of information while exploiting or denying an adversary's ability to do the same. This paper will describe the OE UD concept and collaborative approach to promote unity of effort for providing integrated OE data to enable planners to wargame courses of action (COAs) that will support their analysis of apply Diplomatic, Information, Military, and Economic (DIME) elements of national power to shape favorable mission outcomes. It will address challenges associated with manual data assimilation processes including: 1) Defining and understanding a complex OE; 2) Providers of PMESII-PT information are often diverse and disparate in their missions, geographic locations, and data transmission means; and, 3) Source data for PMESII-PT information is developed and stored in myriad formats and structures.