Which event occurred at the end of World War II, causing alarm for Soviet foreign policy makers?

Question

Quizplus · Accepted Answer

The explosion of the atomic bomb marked the end of World War II and caused alarm for Soviet foreign policy makers. The United States now had a weapon that the Soviet Union did not have, giving the US a significant strategic advantage in any future conflicts. This led to an arms race between the US and the Soviet Union, known as the Cold War.

Which Event Occurred at the End of World War II