My work aims to understand how territorial conflicts and use of space in ants arises from individual behavior, including communication, assessment and aggressive interactions. /Tetramorium caespitum/ is a common invasive ant in New England that stages large battles at territorial boundaries each spring. In addition to studying the behavioral mechanisms behind /T. caespitum/ battles and how these mechanisms relate to colony level responses, I have developed a numerical model describing the dynamics of two self-organizing groups of individuals in conflict. This generalized model of self-organizing conflict is of interest to a broad range of disciplines.