Chapter 20 begins with the binding of Satan and ends with the Great White Throne Judgment.
The final destruction of the economic and political systems of Babylon in the Tribulation period.
This chapter finishes the third interlude in Revelation dealing with events throughout the tribulation period.
Chapter 12 begins another parenthesis that gives detailed information about 7 different characters of the future tribulation period.
Chapter 10 records a parenthesis between the 6th and 7th trumpet judgments of the future tribulation period.
The 5th and 6th trumpet judgments are the 1st and 2nd woes of God's divine judgment in Revelation 9.
The First 4 Trumpet judgments of the future tribulation period.
Chapter 7 is a parenthesis between the 6th seal and the 7th seal.