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Under Secretary of Defense for Acquisition and Sustainment Ellen M. Lord and Deputy Under Secretary of Defense for Policy David J. Trachtenberg will brief the press, on camera, on DOD’s response to Turkey accepting delivery of the Russian S-400 air and missile defense system at 3:00 p.m. EDT in the Pentagon Briefing Room (2E973).

Both U.S. and foreign journalists without a Pentagon building pass must be pre-registered in the Pentagon Visitor Management System to attend this press briefing; plan on being escorted from the River Entrance Pedestrian Bridge or the Pentagon Metro Entrance Facility only. Please arrive no later than 15 minutes before the briefing; have proof of affiliation and photo identification. Please call 703-697-5131 for any questions and escort into the building. 

This briefing will also be streamed line on