Which discovery was a major milestone in rocketry due to the work of both the US and the Soviet Union?

The discovery that rocketry was recognized as a military weapon marked a significant milestone because it transformed how nations viewed and utilized rocketry. Both the US and the Soviet Union made substantial advancements in missile technology during and after World War II, leading to an arms race characterized by the development of long-range ballistic missiles. This recognition laid the groundwork for the eventual exploration of space, as the technology developed for military purposes could also be repurposed for satellite launches and human spaceflight.

The implication of rocketry as a military tool not only spurred government funding and research in both countries but also established crucial frameworks for international treaties and strategies surrounding missile defense and space exploration. By understanding rocketry's potential in warfare, significant strides were made that would influence the subsequent space race, ultimately leading to milestones in human space exploration and satellite deployment. This foundational shift in perception was pivotal in driving the competitive technological advancements seen during the Cold War period.