The resulting agreement triggered unprecedented scientific and technological cooperation today between the three nations. In 1940, Britain was overwhelmed by the growing power of German Nazi forces, faced nightly attacks by the Air Force and a rapid dwindle of resources. Following the advice of Sir Henry Tizard, a scientist who had played a decisive role in the creation of Britain`s first radar defence system in the 1930s, British Prime Minister Winston Churchill commissioned a small task force of civilian and military scientists to travel to the United States to facilitate technology exchanges between the United States. Great Britain and Canada. Churchill and Tizard hoped that sharing the cavity`s tape recorder — a vacuum tube that produces radar micro-ashes small enough to fit in an aircraft — would trigger an agreement on their large-scale production on U.S. soil. The U.S. Congress had many proponents of neutrality for the United States, and so there were other obstacles to cooperation. Tizard decided that the most productive approach would simply be to give the information and use the U.S. production capacity. Neither Winston Churchill nor radar pioneer Robert Watson-Watt initially agreed with this tactic for the mission. Yet Tizard initially arranged for Archibald Hill, another scientific member of the Committee, to travel to Washington to explore the possibilities. Hill`s report to Tizard was optimistic.
The mission visited the United States in September 1940 during the Battle of Britain. They intended to pass on to the United States a series of technical innovations in order to gain support to sustain the war effort. He realised the need for an extension and began negotiations for the takeover of the Royal School of Needlework building on Exhibition Road, bought land from Harlington to be used as a sports ground and helped secure Silwood Park as a university`s country resort. He also played an important role in the creation of the current South Kensington Campus by consolidating Imperial`s influence on its central estate, known as the “Island Site”, which was considered by the government for other purposes. At the height of its activities, the Rad Lab employed more than 4,000 people from all sectors of science, industry and government, an approach that should in the future model a lot of cross-sectoral cooperation in research. Throughout the war, the work of the cycling laboratory was extended to crucial technologies such as microwave radar detection and long-range navigation systems – work that ultimately helped turn the page in favor of the Allies. “He had left a world threatened by impending catastrophe,” Phelps writes, where every day, every hour counted. Every minute that passed seemed to bring Britain closer to the final count. But Washington was always at peace, and the weekend was always the weekend. “The Tizard mission and the resulting partnership have shown that how we develop the technology is as important as how we use the technology,” said Vernon Gibson, Chief Scientific Adviser at the UK Ministry of Defence. “Tizard`s mission was a desperate act of trust that sowed the seed of victory and collaboration to come.” After the war, Tizard was chairman of the Defence Research Policy Committee and chairman of the British Association. One of the South Kensington Southside residences, opened in 1963, is named after him. On September 19, some of Tizard`s teams went to the Wardman Park Hotel to meet with Mr.
Alfred Loomis of the National Defense Research Committee, the U.S. group responsible for coordinating and conducting scientific research for military applications.  They presented Loomi`s information about the hollow magnetron, which so astonished the Americans that the conditions for broad cooperation in the production of microwave radars between the two countries were soon met. . . .