Cloud computing has been proposed by many as a means for Simulation as a Service (SIMaaS) to provide distribut-ed stand-alone or integrated simulations. During Operation Blended Warrior (OBW) 2015 – “a Live, Virtual, and Constructive (LVC) event conducted between DoD and Industry to showcase new capabilities while documenting LVC integration and execution challenges� (NTSA, 2015) – SAIC contributed Simulation as a Service via cloud computing. SAIC and VT MÄK worked together prior to the OBW integration event in order to provide VR Forces and DI-Guy-based Enhanced Company Operations Simulation (ECOSim) to OBW participants via the cloud. In spite of this up front effort, there were still obstacles to overcome during the integration event. This paper will inves-tigate the capabilities and pitfalls of cloud computing to support a large-scale LVC event, explore the lessons learned by our team during the integration event prior to OBW, and relate our experiences during execution of OBW at the 2015 Interservice/Industry Training, Simulation, and Education Conference (I/ITSEC). Finally, we will take a look at future enhancements for SIMaaS to support OBW 2016.