Revelation 20:1 And I saw an angel come down from heaven, having the key of the bottomless pit and a great chain in his hand.
2 And he laid hold on the dragon, that old serpent, which is the Devil, and Satan, and bound him a thousand years,
3 And cast him into the bottomless pit, and shut him up, and set a seal upon him, that he should deceive the nations no more, till the thousand years should be fulfilled: and after that he must be loosed a little season.
Chapter 20 continues with a more detailed account of what happened to Satan and his demons, it does not include those who followed him in the tribulation because they were all killed in the war. Another angel was given power over Satan to lock him up in the bottomless pit. The angel had the keys and a great chain to show how much power he had to do God’s will. Satan is going to be bound for 1000 years where he cannot deceive the nation during this period. Wouldn’t it be awesome if today we did not have to worry about being deceived by Satan, but then if we keep our eyes on Jesus we can resist those temptations.After the 100 years Satan will be released along with his demons to temp man again. Now you say Jesus has been reigning for 1000 years with the saints how many people can Satan deceive. There will be millions of people born in the 1000 years and it is up to their parents to help teach them about Jesus and some of these parents could live the full 1000 years. But you have to realize man has the same choice today because Jesus is with us if we allow Him to be and live like He is a part of our lives. We will see later how many and why. Find you a church today that will teach you the truth of God’s word so you do not have to worry about making though the tribulation.