What was the Columbian Exchange?

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.

With state which alliance promoted goals and protection of the united states and which alliance promoted goals and protection of the soviet union. site and explain evidence from each primary source to support your answers.

The annexation of bosnia and herzegovina by austria-hungary in 1908 caused serious bitterness between serbia and austria-hungary.