I disagree with it being Islam but the tribulation is real.
Consider these passages:
Rev 13:
[SUP]7 [/SUP]It was granted to him to make war with the saints and to overcome them.
Dan 7:
[SUP]21 [/SUP]“I was watching; and the same horn was making war against the saints, and prevailing against them,
Mat 24:
[SUP]21 [/SUP]For then there will be great tribulation, such as has not been since the beginning of the world until this time, no, nor ever shall be. [SUP]22 [/SUP]And unless those days were shortened, no flesh would be saved; but for the elect’s sake those days will be shortened.
Luke 18:
[SUP]7 [/SUP]And shall God not avenge His own elect who cry out day and night to Him, though He bears long with them? [SUP]8 [/SUP]I tell you that He will avenge them speedily.
Rev 6:
[SUP]9 [/SUP]When He opened the fifth seal, I saw under the altar the souls of those who had been slain for the word of God and for the testimony which they held.
Rev 7:
[SUP]9 [/SUP]After these things I looked, and behold, a great multitude which no one could number, of all nations, tribes, peoples, and tongues, standing before the throne...
[SUP]14 [/SUP]And I said to him, “Sir,you know.”
So he said to me, “These are the ones who come out of the great tribulation...
2 Thes 1:
[SUP]6 [/SUP]since
it is a righteous thing with God to repay with tribulation those who trouble you, [SUP]7 [/SUP]and to
give you who are troubled rest with us when the Lord Jesus is revealed from heaven with His mighty angels,
Rev 18:
[SUP]6 [/SUP]Render to her just as she rendered to you,and repay her double according to her works; in the cup which she has mixed, mix double for her.
Ask yourself this. What group hates and kills Christians and Jews whenever and wherever they can? How about ISLAM? You see, once you understand who the Beast of the Sea is and that Mystery Babylon, the Mother of all Harlots is Islam and Mecca, then everything becomes much clearer.
The 8th BEAST KINGDOM will be ISLAMIC and already worships the same way as the Babylonians did. This false worship has roots all the way back to Egypt and Moses' Day. We've had 7 Beast Kingdoms all worshiping Satan and his symbol, the star and crescent.
Star and crescentA star and crescent featuring in some combination form the basis of symbols widely found across the ancient world, with examples attested from the Eastern Mediterranean, Persia and Central Asia.
Wikipedia
This symbol was followed in Paul's day with the worship of Diana in Ephesus too.