thumb|right|275px|U.S. and British engineers dismantle the [[nuclear pile that German scientists had built up under the Uranprojekt program in Haigerloch in April 1945]]
Operation Harborage was an operation to capture German nuclear energy program scientists, materiel, and facilities in southwestern Germany in the waning days of World War II.
History
Part of the Allied Alsos Mission, Operation Harborage was led by Manhattan Project intelligence division chief Col. John Lansdale, Jr. on behalf of project head General Leslie Groves, under the direction of Alsos commander Col. Boris Pash. It was carried out by Alsos team members assisted by combat engineers from the 1269th Engineer Combat Battalion, the U.S. Sixth Army's T-Force intelligence assault force.
Shortly after the liberation of Paris it was decided to bomb German nuclear facilities wherever they lay in order to deprive the Soviet Union of their technology and personnel, unless American troops could get to them first.