While working at the Submarine Mine Depot, Toftoy oversaw the development and design of a new system of controlled
submarine mines that was widely used during
World War II. Toftoy acquired great expertise in mines and explosives; he helped clear harbors in
France during the war. In 1944, Toftoy became chief of the Army Ordnance Technical Intelligence teams assigned to Europe to seek and evaluate captured enemy ordnance weapons and equipment. During this time, Toftoy received a request from Colonel Gervais Trichel, chief of the rocket branch in the Ordnance Department at
the Pentagon, to acquire and ship 100 operational
V-2 rockets to the
White Sands Missile Range in
New Mexico for testing. Soon after the Allied capture of the areas around
Nordhausen and the
Mittelwerk, Toftoy set up Special Mission V-2 to do the job. He assigned Major William Bromley in command of the special mission, who reported to Toftoy through Major James P. Hamill. The latter was responsible for shipping the weapons from Nordhausen to
Antwerp, and from there to
New Orleans, for transportation to White Sands. Bromley and Hamill went to central Germany to salvage as many missiles as they could, under pressure because of the unwelcome news that U.S. forces would soon be withdrawing, as Nordhausen was in the planned Soviet Zone of Occupation, later
East Germany. Although one hundred complete V-2s were not available, Toftoy organized U.S. soldiers and camp workers to put partially completed rockets and major components into hastily requisitioned rail cars. From 22 to 31 May, several freight trains left Nordhausen for Antwerp loaded with missile and missile parts, thus successfully completing the mission. Toftoy knew the
U.S. Army was planning to add guided missiles to its weapons program. He cabled the Pentagon, then personally went to Washington to recommend to senior officers that German scientists be brought to the U.S. for interrogation and possible employment. The mission became known as
Operation Paperclip. By September 1945, the first group of scientists, including
Wernher von Braun, had arrived in the United States. In the first year of this program, some 119 German scientists were brought to the United States under Toftoy's leadership. Toftoy was transferred to Washington and assigned responsibility for direction of the Army guided missile program. ==After the war==