Confirmation that the League of Nations - UN was the image of the wild beast came during WW2.
Here is John’s description of this final beast: “A scarlet-colored wild beast that was full of blasphemous names and that had seven heads and ten horns.” Regarding this beast, John was told: “The wild beast that you saw was, but is not, and yet is about to ascend out of the abyss, and it is to go off into destruction. . . . It is also itself an eighth king.” (Revelation 17:3, 8, 11) True to this description, the League of Nations tried to act like a world power on the world scene. However, it failed to prevent World War II, which started in 1939. The beast disappeared, as it were, into the abyss. During World War II, the Anglo-American world power worked hard to revive that international organization. In 1941 the prime minister of Great Britain, Winston Churchill, held secret talks with President Franklin Roosevelt of the United States on board a ship in the Atlantic ocean. They made a joint declaration about “their hopes for a better future for the world” and “the establishment of a wider and permanent system of general security.” The following year in Washington, D.C., 26 nations subscribed to this Anglo-American proposal in what was called the “Declaration by United Nations.” This led to the creation of the United Nations organization on October 24, 1945. The scarlet beast had ascended out of the abyss with a new name
All of this, however, leaves out of account the Messianic Kingdom of God, established in heaven in 1914. Every human on earth must choose between rulership by God and rulership by man. Soon, the scarlet beast, along with all human governments, will be involved in a battle with God’s installed King, Jesus Christ. The result? “Because he is Lord of lords and King of kings, the Lamb [Jesus Christ] will conquer them.” Yes, the scarlet beast together with the entire system of human government will ‘go off into destruction.’—Revelation 17:11, 14; see also Daniel 2:44. What a blessing it will then be not to have been misled by the dragon and his three beasts! Those who have proved themselves loyal subjects of God’s Kingdom will survive to become part of “a new earth.” God “will wipe out every tear from their eyes, and death will be no more, neither will mourning nor outcry nor pain be anymore. The former things have passed away.” (2 Peter 3:13; Revelation 21:3, 4) Hence, subject yourself to God’s Kingdom, the only effective world government. Then you, too, will be in line to enjoy these everlasting blessings.