Answer:
The vote by the United States Senate on the Treaty of Versailles (1919)
demonstrated an unwillingness to join the League of Nations
Explanation:
The United States contributed more to Cold War tensions because of the U-2 incident, the Eisenhower Doctrine, and United States involvement in Guatemala and Iran. Both countries were equally at fault.
The answer is B , because Spain France and Netherlands got involved to adjust the balance of power they had with the British empire
