Operation Shader primarily focuses on which of the following?

Operation Shader primarily focuses on military intervention against ISIS in Iraq and Syria. This operation is part of the United Kingdom's response to the threat posed by ISIS and aims to support the coalition forces in the region. The mission includes various components such as airstrikes against ISIS targets, intelligence gathering, and providing support to Iraqi and other allied ground forces.

The emphasis on military intervention highlights the objective of neutralizing ISIS's capacity to conduct operations and stabilize the region. This focus aligns with broader international efforts to combat terrorism and enhance security both regionally and globally. In contrast, the other options refer to various military activities that may occur in different contexts but do not specifically align with the primary mission of Operation Shader.