Swiss American Historical Society Review Volume 52 Number 1 Article 3 2-2016 Operation Sunrise: America's OSS, Swiss Intelligence, and the German Surrender 1945 Stephen P. Halbrook Follow this and additional works at: https://scholarsarchive.byu.edu/sahs_review Part of the European History Commons, and the European Languages and Societies Commons Recommended Citation Halbrook, Stephen P. (2016) "Operation Sunrise: America's OSS, Swiss Intelligence, and the German Surrender 1945," Swiss American Historical Society Review: Vol. 52 : No. 1 , Article 3. Available at: https://scholarsarchive.byu.edu/sahs_review/vol52/iss1/3 This Article is brought to you for free and open access by BYU ScholarsArchive. It has been accepted for inclusion in Swiss American Historical Society Review by an authorized editor of BYU ScholarsArchive. For more information, please contact
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[email protected]. Halbrook: Operation Sunrise Operation Sunrise: America's OSS, Swiss Intelligence, and the German Surrender 1945 by Stephen P. Halbrook* Operation Sunrise was a cooperative effort of American and Swiss intelligence services which led to the unconditional surrender of the German Wehrmacht forces in Northern Italy and Western Austria on May 2, 1945. General Heinrich von Yietinghoff, Commander-in Chief of the Southwest Command and of Army Group C, surrendered nearly a million soldiers, the strongest remaining German force. This was the first great surrender of German forces to the Allies, and became a strong impetus for the final Allied victory over Nazi Germany on May 8, Victory in Europe (YE) Day. Operation Sunrise helped to nip in the bud Nazi aspirations for guerilla resistance in an Alpine redoubt.