This thesis examines the factors which impact societal willingness to integrate in a post conflict, post power sharing agreement environment. Utilizing the Northern Ireland case, this study analyzes variance in willingness to integrate between Protestant and Catholic groups. Analysis of the Northern Ireland Life and Times survey data illustrates the shifting relationship between political trust and ingroup/outgroup frustrations on levels of willingness to integrate since the Good Friday Agreement. Statistical analyses indicate confirmation of ingroup attachment and elite political trust hypotheses, and reduced impact of outgroup benefit perceptions on willingness to integrate since the Good Friday Agreement.