Which resurrections complete the resurrection of all believers for the age?

Les explains that this resurrection completes the resurrections of all the believers of the age. The church age believers were already taken out, and the first fruits were taken out before that. Now comes the resurrection of all the Old Testament believers as well as the tribulation believers, and then they are ready for the Kingdom. Les points out that since this resurrection of the Old Testament saints is 75 days into the Kingdom, there has to be a reason. He says a lot can happen in 75 days for God, and he turns to Daniel 2 for the explanation. There, Nebuchadnezzar's dream concerns all the great empires of the world pictured in the great image: the head of gold, chest of silver, belly of brass, legs of iron, and feet of iron and clay. These picture the Gentile empires coming down through history. When the Lord returns at the end of the tribulation, He will strike that image on the empire then functioning, the iron and clay of the revived Roman Empire, and crush everything that smacks of Gentile rule and empire.