When the U.S. Army captured the Peenemünde engineers, including Werner Von Braun, Dr. Richard W. Porter of Project Hermes was close behind. Following the capture by American forces of the Mittelwerk V-2 factory, Special Mission V-2 swept in and scooped up enough components to assemble 100 V-2s. The components were quickly removed to New Mexico. Three hundred rail cars of V-2 parts and documentation arrived at the White Sands Proving Grounds and General Electric personnel started the task of inventorying the components. For the next five years overhauling and manufacture of parts, assembly, modification and launching V-2 rockets would be the major part of Project Hermes. Many of the V-2 components were in poor condition or unusable.