Memorandum for Senior Pentagon Leadership Defense Agency and DOD Field Activity Directors Commandant of the Coast Guard: Countering Extremist Activities within the Department of Defense [open pdf - 82KB]
From the Document: "The overwhelming majority of the men and women of the Department of Defense serve this country with honor and integrity. They respect the oath they took to support and defend the Constitution of the United States. We are grateful for that dedication. We believe only a very few violate this oath by participating in extremist activities, but even the actions of a few can have an outsized impact on unit cohesion, morale and readiness - and the physical harm some of these activities can engender can undermine the safety of our people. We owe the men and women of the Department of Defense an environment free of extremist activities, and we owe our country a military that reflects the founding values of our democracy. To that end, we have taken a series of actions to address and counter extremist activities within the Department."
United States Department of Defense: https://www.defense.gov/