After they announced war on Germany, the French and British had activated their armed forces. They positioned their troops along the Maginot Line, an arrangement of strongholds along France's fringe with Germany.
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It allowed them to tax the states. the articles of confederation did not do that.
The affirmative is true.
Kublai Khan was a Mongol emperor and had a big importance with the contact between China and The West. He increased trade routes in Asia and was a good supporter of science and the arts. Marco Polo was the explorer who went more the China during that time and was one of the responsibles for the connection between the empire and the west.
This also happened during the Crusades. When the Crusaders went to the Middle East they saw the advanced trade system there and they learned advanced mathematics and numeral systems. This made Europe open to new ideas and products
c. arms race
during the cold war, america, the soviet union, and their respective allies all participated in a nuclear arms race.