This FMI establishes doctrine (fundamental principles and TTP) for military operations in a counterinsurgency environment. It is based on existing doctrine and lessons learned from recent combat operations. Additional counterinsurgency doctrine is being developed. It will be combined with the doctrine in this FMI and published as an FM prior to October 2006. An FMI is a DA publication that provides expedited delivery of urgently needed doctrine the proponent has approved for use without placing it through the standard development process. Unless an FMI is rescinded, information it disseminates is incorporated into a new or revised FM. FMIs expire after two years, unless superseded or rescinded.