The Bureaus of Immigration and Naturalization and the Great War

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April 2017 marks the 100th anniversary of the U.S. entry into World War I. Did you know the Bureaus of Immigration and Naturalization, which preceded USCIS, supported the American war effort in many ways? For example, on the very night the U.S. declared war, immigration officers moved quickly to detain German officers and crewmen from German ships in U.S. ports. And during the war—and well after the armistice—the Bureau of Naturalization granted U.S. citizenship to immigrant service members. 

This webinar will use primary sources to provide an overview of the Bureaus of Immigration and Naturalization’s multifaceted roles during WWI. 

To join the webinar, visit the USCIS History and Genealogy webinar page and click “Attend Session” just before the scheduled start time of 1:00 PM Eastern on Thursday, April 27.

This webinar will not be recorded, so be sure to join us live.

For more information please visit

Thursday, April 27, 2017 - 1:00pm
Online Webinar
U.S. Citizenship and Immigration Services