in october of 1957, the soviet union shocked the united states by\nrefusing to build missiles.\ntesting the…

in october of 1957, the soviet union shocked the united states by\nrefusing to build missiles.\ntesting the first hydrogen bomb.\nincreasing their defense spending.\nlaunching the satellite sputnik i.

in october of 1957, the soviet union shocked the united states by\nrefusing to build missiles.\ntesting the first hydrogen bomb.\nincreasing their defense spending.\nlaunching the satellite sputnik i.

Answer

Brief Explanations:

In October 1957, the Soviet Union launched Sputnik 1, the first artificial - satellite, which shocked the US during the Cold - War space race. The US was concerned about the Soviet Union's technological lead in space.

Answer:

launching the satellite Sputnik I.