The following two blogs #41 and #42 will now together further elaborate on the ISAF’s Caveat Crisis in Afghanistan, by providing a description of the way in which the mission’s caveat problem developed over the course of the Security Assistance mission, increasing in both scope and severity as the operation progressed through the four fundamental phases of NATO’s Operational Plan (OPLAN) for the mission. Indeed, limitation and ban rules in the Rules of Engagement (ROE) of ISAF national contingents were actively and obstructively present during all five of the OPLAN’s phases, from the very genesis of the ISAF operation in December 2001 until its complete termination in December 2014. These included the phases of: I) Assessment and Preparation; II) Geographic Expansion; III) Stabilisation; IV) Transition; and lastly V) Redeployment. These blogs will provide a concise overview of the diverse difficulties posed by these national caveat restrictions on the ISAF Force during each of these operational phases, in order to illustrate how the issue of heavy caveat imposition spread like a cancer, first politically in the Coalition of the Willing, and then operationally and tangibly across the mission in terms of both geography and time, with the caveat issue growing larger and generating more and more alarm in military and political quarters with the progression of each successive NATO-led phase until the final termination of the mission.