Introduction; Section I Building Theories; Expeditionary Modeling for Megacities and Other Dense Urban Areas; More than Just a Story: Narrative Insights into Comprehension, Ideology, and Decision Making; The Spread of Information via Social Media; The Spread of Opinions in Societies; Culture’s Influences on Cognitive Reflection; Cultural Influences on Cognitive Biases in Judgment and Decision Making: On the Need for New Theory and Models for Accidents and Safety; Section II Collecting and Analyzing Data; The Sixty Percent Mission: An Introduction to High-Risk Ethnography Process and Protocol in Support of the US Army’s Civil Affairs Humanitarian Mission; Challenges in Connecting with the Disconnected: An Introduction to Connecting with Communities Disconnected from the Rest of the World; They Are Beyond WEIRD: Helpful Frameworks for Conducting Non-WEIRD Research; Deciphering the Emic Perspective in Data in Order to Assess Threat; Collecting Data and Semantic Content via Mobile Devices; Measuring Changes in Attitudes: Using Factor Analysis to Track Population Attitudes Spatially and Temporally; Gaining Insight by Applying Geographical Modeling; Section III Building and Validating Sociocultural Models; Sociocultural Capability Requirements across All Phases of Military Operations; Methods to Characterize and Manage Uncertainty for Sociocultural Applications; Validating Causal and Predictive Claims in Sociocultural Models; Rapid Generation of Political Conflict Simulations for Scenarios around the World; Detailed Model Development Case Study: The Peace Game; Section IV Applying Sociocultural Models to Gain Insight into Conflict and Instability; Using the Social Framework Model of Trust to Better Understand Trust in Government; Understanding Public Opinion toward Violent Extremists; Modeling Sociocultural Influences on Decision Making: Assessing Conflict and Stability; Modeling Social System Resiliency: An Agent-Based Multiscale Approach; Applying Modeling and Simulation to Foreign Policy: An Afghan Example; Subject Index; Author Index