Junior enlisted Marines are getting married at a faster rate than their civilian counterparts and nearly twice that of senior personnel (Gomulka, 2010; Cohen, Passel, Wang, & Livingston, 2011). With the high rate of marriage, these same junior Marines have a disproportionately high divorce rate. While the high rate of divorce is a significant issue, divorce in the Marine Corps population is complex as it affects the individual's and family's well-being, and the Marine's unit level of readiness (Karney & Crown, 2007; United Stated Marine Corps, 2014). As a result of this high rate of divorce, a group of Navy chaplains created the Intimate Relationships Awareness, Training, and Enrichment (iRelate) program (Lloyd, Munoz, Tremblay, Foskett, Hallett, & Distelberg, 2015). This program was developed as an educational approach intended to prepare young Marines for success in relationships, with a focus on marriage preparation and enrichment. iRelate is a psychoeducational approach that integrates the Family Resilience Model, Life-Cycle Perspective, and the Human Ecological Model to conceptualize relationship education. The current study was designed to analyze the overall effectiveness of the iRelate program. The study uses a longitudinal design with four treatment conditions (treatment groups 1, 2, 3 and treatment as usual) to follow the Marine and their significant other as their relationship progresses through the three stages of iRelate, for a period of up to 36-months. Marine Corps bases in Arizona, California, and Hawaii will be used to recruit participants. The data that is collected from the study will be used to examine the overall effectiveness of iRelate over time, using a Multivariate Analysis of Variance method (Aim I). A second analysis using Dyadic Data Analysis and Actor Partner Interdependence Models will be employed to test the mechanism by which marital satisfaction effects suicide-related behavior over time (Aim II). [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.]