And I beheld another beast coming up out of the earth; and he had two horns like a lamb, and he spake as a dragon. And he exerciseth all the power of the first beast before him, and causeth the earth and them which dwell therein to worship the first beast, whose deadly wound was healed (Revelation 13:11-12 emphasis added).
There is only one nation that qualifies to be the second beast, based on the criteria mentioned in this passage. The power described would have to become a mighty nation in order to exercise authority over all the nations of the world. It had to have arisen out of an unoccupied territory, because it was "coming up out of the earth," or the opposite of the sea, which symbolizes occupation of many nations and languages.
As seen in the passage above, the power would have lamb-like qualities, but would speak like a dragon. This means that the nation must have attributes of Christ, but that it would relinquish these in favor of attributes of the dragon.
Only America Qualifies
The United States of America is a global power that was established in a sparsely populated area of the world. During the 1260 years of persecution against the Protestant Church, God was preparing a place of escape for His persecuted saints. At the right time, as the Reformation was gaining power and the Catholic Church was weakening, Protestant Christians came across the Atlantic to escape the reach of Rome’s oppressive arm.
In Revelation 12:15-16 we are told this:
So the serpent spewed water out of his mouth like a flood after the woman, that he might cause her to be carried away by the flood. But the earth helped the woman, and the earth opened its mouth and swallowed up the flood which the dragon had spewed out of his mouth (NKJV).
In this passage, the earth represents the uninhabited New World to which the woman (the persecuted Church, see Jeremiah 6:2 and 2 Corinthians 11:2) fled to escape papal persecution. By 1776 the War of Independence had ended. The American Constitution came into effect in 1789. Just around the time of the end of the 1260-year prophecy, the USA was rising as an independent nation—exactly in the time frame predicted by the Bible.