text: Chapter 1
  force of the U.S. military, partner with joint forces. They organize, practice, and employ capabilities in
  multidomain operations to contest adversaries. This occurs in competition below armed conflict and during
  armed conflict. The capabilities that joint forces provide are critical to the success of any such campaign and
  act as a military force multiplier for coalition forces.
  1-30. In dynamic operational environments, U.S. Army forces often have only days to integrate key functions
  and capabilities with UAPs. Therefore, interoperability must be a fundamental condition of how Army
  commanders plan to fight now and in the future. At its core, interoperability aims to increase the effectiveness
  of U.S. Army forces with UAPs as they execute their assigned missions. U.S. Army commanders increase
  the probability of mission success by integrating the imperatives of operations. Imperatives, which are actions
  Army forces take to defeat enemy forces and succeed in operational environments, are based on
  characteristics of the competition and conflict. (Refer to FM 3-0 for a discussion on imperatives.) Integrated
  imperatives enable U.S. Army forces, as part of a coalition, to employ all available Army and UAP
  capabilities in ways that enhance the accomplishment of U.S. and coalition objectives.
  1-31. U.S. Army operations integrate UAPs while applying each of the imperatives. Doing so requires mutual
  trust and confidence, shared understanding, and unity of effort enabled by interoperability solutions across
  human, procedural, and technical dimensions. To conduct combined arms operations with UAPs, Army
  forces require a base technological architecture (such as an MPE) into which Army forces and their partners
  can easily integrate and operate. Figure 1-1 illustrates the dimensions of interoperability.
  Figure 1-1. Dimensions of interoperability
  LEVELS OF INTEROPERABILITY
  1-32. Interoperability has four levels ranging from no demonstrated interoperability to fully integrated
  interoperability with U.S. forces. (See Table 1-2 for the levels of interoperability and AR 34-1 for additional
  information.) Interoperability has five priority focus areas (sometimes called PFAs). (See Figure 1-2 for
  integration of levels with priority focus areas.) Interoperability is and will remain a key requirement for the