The reentry of service members back into family life after deployment can be extremely challenging for military couples. Understanding the factors that contribute to the reintegration difficulty of returning service members and at-home partners is essential for attracting, retaining, and safeguarding the nations best military personnel. The goal of this project is to evaluate how peoples mental health symptoms and romantic relationship characteristics predict their difficulty with reintegration. The research design is an 8-wave longitudinal study in which 250 military couples complete an online survey once per month for eight consecutive months beginning at homecoming 4,000 total observations. Military couples are eligible to participate if a individuals are involved in a romantic relationship, and b both partners complete the Wave 1 survey during the first week after reunion following deployment. We will use the data to generate research-based guidelines for reintegration.