Colmar Pocket

Battle context

The Colmar Pocket represented a significant unresolved gap in the Allied liberation of Alsace. When the U.S. 6th Army Group cleared southern and northern Alsace in late 1944, the German Nineteenth Army retained a lodgment in central Alsace, creating an exposed salient that threatened Allied flank cohesion along the Rhine front. During Operation Nordwind in December 1944, the Nineteenth Army used the Pocket as a launch point, attacking northward in coordination with German forces pressing south from the Saar into northern Alsace — demonstrating that the uncleared pocket was not merely a static anomaly but an active operational liability. The elimination of the Pocket by the French First Army in late January and early February 1945 removed the last significant German position west of the Rhine in this sector. With a German force of roughly 50,000 facing a French commitment of 420,000, the disparity in scale underscores the attritional cost the defense imposed: French casualties reached over 13,000 against German losses estimated between 22,000 and 38,500. The clearing of the Pocket straightened the Allied line and denied Germany any further operational use of its Alsatian bridgehead ahead of the Rhine crossings.