Answer:
Operationally the League was hampered throughout its existence by the reluctance of its member states to intervene in international disputes and apply collective security mechanisms. One of the most egregious cases was the League's weak response to Japan's invasion of Manchuria in 1931.
Explanation:
The answer is b, the destruction of the Berlin wall.
The three amendments that were passed shortly after the Civil War were: the <span>13th, 14th, and 15th amendments</span>