During World War II, lots of countries were fighting against each other. Some countries were working together and we call them allies. These allies needed to create new technology to help them win the war. They didn't want to waste time and resources making the same things over and over again so they shared their ideas and things they created with each other. This is called cooperation.
To help the allies work together, they created an organization called the Combined Development Trust (CDT). This organization was responsible for sharing technology ideas and inventions between the allies. Everyone who was part of the CDT had access to the ideas and inventions that other countries had made, so they could work together to create new technology.
One example of technological cooperation during World War II was the creation of the jeep. The jeep was a small, all-terrain vehicle that was used by the Allies in many different types of operations. The United States created the jeep, but they shared the technology with their allies, who then helped improve the design. Britain contributed to the development of the four-wheel drive system, while Canada created a new transmission.
In addition to the jeep, the Allies cooperated on many other technological projects such as aircraft development, radar technology, and medicines. These projects helped the Allies win the war by making them more efficient and effective on the battlefield.
To sum up, allied technological cooperation during World War II was when the countries fighting together shared their ideas and inventions with each other. This allowed them to create new and better technology that helped them win the war. One of the most famous examples of this cooperation was the creation of the jeep, which was made better through the contributions of multiple countries.