Biblical prophecy is an area which offers great insight concerning those things that are evolving in the world. Prophecy can also be used incorrectly and made to say almost anything. Wisdom lies in knowing how to interpret the general trends outlined in prophecy and in refraining from interpreting in great detail. This is true of the beasts of Revelation.
The Bible uses the terminology of "Beast" to describe a human empire. Daniel (Daniel 7:17) and John (Revelation 17:9-13) both interpret the term "Beast" as a king or kingdom. In modern usage, we believe that the word empire best describes the concept of beast.
There seems to have always been the tendency in man to form empires through which to dominate part or, if possible, all of mankind. The first Biblical empire that we read of is Babel (Genesis 11:1-9) which evidently was the handiwork of the tyrant Nimrod. God, of course, struck this empire. Yet, we see in every age the quest to revive Babel. History records a long sequence of empires which struggled to dominate the civilized world of their days. We recall Assyria, Babylon, Persia, Greece, and Rome from the Biblical era. All of these were very similar to one another. Since the decline of the Roman Empire, there have been a number of efforts at empires which were regional in extent. Eventually technology developed which allowed for a truly global empire. The British Empire was almost global in nature (We recall the phrase, "the sun never sets on the British Empire"). In the 20th century we have seen a truly global empire evolve. It is the United Nations. Today, near the close of the 20th century, the United Nations is nearing the point of exercising dominance over all national sovereignty. This was spoken of by both Daniel and John (Daniel 7:23 and Revelation 13:7). We believe that the UN represents the current Anti-God, Anti-Messiah (Anti-Christ) and Anti-Israel government.