NSSE Event Notice:
250th Birthday of the US Army Grand Military Parade
Saturday, June 14, 2025
This page will provide public safety information, road closures, and restrictions related to this event. Additional details will be made available shortly.
Reagan National Airport
To accommodate aircraft flyovers along the parade route, followed by a fireworks display, the Federal Aviation Administration is expected to suspend airline operations at DCA – affecting scheduled flights. Customers with flight reservations for the evening of June 14 should check the status of their flights directly with their airline.
For more information, please visit the Reagan National airport website.
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For information about the US Army's 250th celebration, please visit their website.
What is a National Special Security Event?
A National Special Security Event (NSSE) is an event of national or international significance deemed by the United States Department of Homeland Security (DHS) to be a potential target for terrorism or other criminal activity. These events may include summits of world leaders, meetings of international organizations, presidential nominating conventions, and presidential inaugurations. As the nation's capital, Washington, DC is frequently the setting for NSSE-designated events. This page will provide information on specific events as they are planned and executed. Learn more about the NSSE designation and preventing terrorism.