The 86th Reconnaissance Troop arrived in France on 1 March 1945, acclimated and trained, and then moved to Köln, Germany, and participated in the relief of the 8th Infantry Division in defensive positions near Weiden which is now part of Lindenthal on 28–29 March 1945. During its few months of combat duty in Europe, the troop participated in amphibious assaults across was Danube, Bigge, Altmuhl, Isar, Inn, Mittel-Isar and Salzach rivers in Germany and Austria. It was assigned to First, Third, Seventh, and Fifteenth US Armies. The unit was at Salzburg on 7 May 1945 (V-E Day). It was then sent back stateside to prepare for operation in the Pacific. Arriving back in New York City on 17 June 1945, the unit proceeded to Camp Gruber in Braggs, Oklahoma before staging at Camp Stoneman in Pittsburg, California on 14 August 1945.