What is the first thing that will happen in the tribulation?
The first event is the Antichrist signing a seven-year treaty. After that covenant is confirmed, Israel will suddenly drop her guard, expecting safety. This treaty marks the opening stage of the tribulation, setting the stage for the later invasion of Israel described in Ezekiel 38.
Les explains that he is comfortable placing the great invasion of Israel in the early stages of the tribulation, tying it to Ezekiel 38. He reminds listeners that the first thing to happen, as pointed out previously, is that the Antichrist signs the seven-year treaty. Israel will then suddenly drop her guard. This is given in the context of coming out of Revelation chapter 6 and studying the aspect of the red horse.