Intelligence analysis is the process by which the information collected about an enemy is used to answer tactical questions about current operations, or to predict future behavior. The collected data is stored in distributed, stove-piped systems, with loss of important data attributes in preprocessing. Existing information analysis tool suites provide visualization, user interfaces, maps, and link analysis, however the analysis manly occurs in the analyst's head, leveraging his/her training and experience. This chapter reviews the state-of-the-art tools; ongoing research and development efforts to enhance analysis capability, and challenges of the development of necessary analysis capabilities.