During which decade were satellites first sent into orbit?

The chart shows data on the construction of dreadnoughts, or armed battleships, by 1914. (look at chart provided) a logical conclusion that can be drawn from this chart is that britain and germany were a.)engaged in an arms race. b.)looking for ways to cooperate. c.)hoping not to fight on land. d.)the strongest nations on the earth.

During the cold war, the united states was involved in certain regional conflicts due to fears later called the domino theory, which stated which concept?

Name at least three countries neaolpeon controlled