Please help me out, write in your own words please please please

Brainliestttme : ) why was the launch of sputnik in 1957 important? -most in the u.s. had not thought the soviets were capable of producing satellite technology. - it made clear that the u.s. space program was dominant. - most in the soviet union had not thought the u.s. was capable of launching manned aircraft. - it established the fact that a more dangerous hydrogen bomb could be created.

Why did roosevelt support a europe first strategy even though it had been japan that had first attacked the us

Persons or group opposing or hostile to another person or group the definition word is