In today's dynamic military environment, information technology plays a crucial role in the support of mission preparedness and operational readiness. This research examined the effectiveness of information technology security simulation and awareness training on U.S. military personnel in Iraq and Afghanistan. Also, the study analyzed whether this training heightened military personnel security awareness in these two environments. Employing a transcendental approach utilizing a Purposeful sampling technique, eight participants were asked to share their thoughts and lived experiences regarding the effectiveness of simulation and security awareness training. The study framework rested on the central research question: What is the effectiveness of Simulation IT security training in a hostile or hazardous environment in Afghanistan or Iraq? The subjects participated in an open-ended interview process which allowed the researcher to analyze the phenomenon and bracket out the participants lived experiences. The participants' data and information was examined from a phenomenological perspective in order to determine significant statements, quotes and themes exclusive to the selected group phenomena. The research findings suggest that information technology simulation and security awareness training is an effective training tool and heightens military personnel security posture and awareness when deploying to Afghanistan and Iraq as it pertains to mission readiness and preparedness. It should be noted based the information and data collected from the participants' lived experiences, the level or degree of effectiveness concerning simulation and security awareness training is contingent on factors such as: leadership support and involvement, applicability of training in a real-world environment, the impact of simulation security awareness training on mission need and readiness and the robustness of the training in a specific deployed area of operations. [The dissertation citations contained here are published with the permission of ProQuest LLC. Further reproduction is prohibited without permission. Copies of dissertations may be obtained by Telephone (800) 1-800-521-0600. Web page: http://www.proquest.com/en-US/products/dissertations/individuals.shtml.]