Final answer:
The Arms Race took place during the Cold War, starting in the late 1940s and ending in the 1990s with the signing of arms control treaties.
Step-by-step explanation:
The Arms Race took place during the Cold War, which lasted from the end of World War II in 1945 until the collapse of the USSR in 1991. The Arms Race was a competition between the United States and the Soviet Union to build up their military forces, particularly nuclear weapons. It started in the late 1940s and reached its peak during the 1950s and 1960s. It eventually ended with the signing of several arms control treaties, such as the Strategic Arms Reduction Treaty (START), in the 1990s.