The 1963 book Babylon the Great Has Fallen: God's Kingdom Rules is now online:
http://www.strictlygenteel.co.uk/babylon/babylontitles.html
This book was the authoritative interpretation of Revelation chapters 14 to 22 up until the Revelation book came out. An interesting chapter showing how the UN is "ridden by the harlot" is at:
http://www.strictlygenteel.co.uk/babylon/babylon26.html
And, the chapter goes on to speak of how the nations support the UN (pages 595 & 596):
For that reason the existence of the League of Nations and its successor, the United Nations, from 1920 onward, must be still shorter. Revelation 17:12 compares the time to just "one hour," for it says that the member nations "receive authority as kings one hour with the wild beast." Since 1920 we have been in that short "one hour" period. Many nations did not get into this international "wild beast" organization until it appeared in its new guise as the United Nations in 1945. Their time for membership in it is still shorter.
In what way can it be said that "these have one thought"? Of course, the Charter of the United Nations should fix the thought for all its member nations or "kings" and it should unite them all in one purpose. But the way that the veto power has been used in sessions of the Security Council of the UN, and the refusal on the part of some members to pay the required taxes for certain military ventures of the UN, and the disorders that have featured some of the meetings of the General Assembly, and the continual lack of oneness of mind on crucial proposals as to general disarmament and stopping of nuclear weapons' testing, etc., all this proves that these "ten kings" are not one in thought. How, then, is the angel's prophecy true, that "these have one thought"? In this way:
The modern-day "ten kings" have "one thought" in opposing God's Messianic kingdom, his kingdom in the hands of the "Lamb of God that takes away the sin of the world." The very League of Nations and its successor, the United Nations, represent an international conspiracy against God's kingdom, which was born in the heavens in 1914 at the end of the Gentile Times. This international organization for peace and security by human means is a deceptive counterfeit for God's kingdom by his Lamb, which Jehovah's witnesses have been preaching to all the nations since the end of World War I. Thus the whole scarlet-colored "wild beast" is against the heavenly Messianic kingdom. In order to support a substitute for that kingdom and in order to further their fight against that Messianic kingdom, the symbolic ten horns or kings do unitedly "give their power and authority to the wild beast," just as Revelation 17:13 foretold. Other nations that are not members of the United Nations are just as much against God's Messianic kingdom. Accordingly they take part with the "wild beast" in this opposition.
How ironic it is that less than 30 years later, the Watchtower Society itself would agree to support the ideals of the Charter of the United Nations!!
See this statement from the United Nations about the Watchtower's affiliation with the UN:
http://www.randytv.com/secret/unfax.jpg
more information at:
http://www.jwfacts.com/index_files/un.htm
Guess, the WT Society decided to take its turn in riding the UN too!