The Church & Nazi Germany were mysteries in the Old Testament in the sense that they were hidden from them. The character of the Anti-Christ has been seen in various empires. All basically went against God—especially the rulers of the Roman Empire by claiming they themselves were gods.
The essential characteristics of the 7th Beast Empire: 1) It must come after the 6th Beast Empire (Rome). 2) It must persecute the Jewish people while they were out of their land, dispersed “from one end of the earth to the other.” 3) It “must remain a little while (Rev. 17:10b). 4) It would be hideously cruel in its persecution and slaughter of the Jewish people as prophesied in the curses recorded in Dt. 28:64-67. 5) It must exist and come to an end before Israel would return to her land. 6) And finally, since Israel returned to her land as a nation in 1948, there is only one thing we can conclude—the 7th Beast Empire had to have existed sometime between AD 70 and 1948.
The shocking reality is that only one nation in history fits these criteria—Nazi Germany, the Third Reich, under the absolute and demonic dictatorship of Adolph Hitler! The two overriding ambitions of Hitler were, 1st to establish a 1,000 year reign over the entire world—the counterfeit millennium of the demonic messiah; and 2nd to totally exterminate all Jews.
(The Sign by Robert VanKampen, pg. 107)