This war you speak of happens when the fourth seal is opened before the seventh seal that ushers in the first trumpet of Gods wrath. This is not the abomination that causes desolation in Jerusalem when the son of perdition takes his literal seat in Jerusalem for 3 1/2 years after the seventh trumpet is sounded. This war is global throughout every nation on every continent.
Rev 6:12-17 The sixth seal was opened and there was a great earthquake; and the sun became black as sackcloth of hair (sackcloth was usually course goat hair), and the moon became as the color of blood. Joel 2:30, 31 and Luke 21:25 forewarns us of what will happen as signs we will see before the great and terrible day of the Lord as in being Gods great wrath before the return of Jesus.
The heaven departs as mentioned in Isaiah 34:4 as a scroll that is rolled together. After the wars in the fourth seal the atmosphere is also clouded with smoke that folds in between itself. If you have ever watched a storm roll in you see this affect of the clouds rolling into each other as it darkens the sky and blocks out the sun. Every mountain and island is moved out of their places by the great earthquakes this Global war has caused
These Pharisee type false prophets try to hide themselves in the dens and the rocks of the mountains and ask the mountains and rocks to surround them and hide them from the wrath of God that is now at hand. These are those who have perverted their ways and have forgotten God their Lord. They hope by hiding their shame God will pass them by and they will be spared, but their shame will devour them unless they truly repent and turn back to God as now Gods final wrath has come. The only ones who will be able to stand at this time are those who have endured unto the end and have Gods seal on them as they have been Spiritually born again, John 3:5-7; Romans 10:9, 10; 2 Corinthians 1:21, 22.
The war we read about in the fourth seal is Global war as these armies will use nuclear and chemical weaponry that not only kills a fourth of the people living on earth, but also creates environmental changes on the earth’s surface and deeper in the earth’s core. The environmental changes that will take place deeper into the earth’s core will activate vault lines causing great earthquakes and volcanoes to erupt.
When you put the effects of nuclear and chemical bombs hitting the ground this will cause the plates of the earth to shift causing earthquakes and volcanoes to erupt. This will produce a massive amount of dust particles to fill the air blocking out sunlight making it appear that the sun has been darkened. The dust particles also scatter blue and green light away in the atmosphere, but red light passes through more easily causing the moon to appear blood red.
The stars that fall from heaven are likened unto a fig tree that loses its figs before they are ripe when the tree is shaken by a mighty wind. This is in reference to those who call themselves Christian, but by name only as they have not the Holy Spirit dwelling in them, Matthew 7:21. The mighty wind that is shaking this tree is Satan as being the host in heaven that will be punished, Isaiah 24:21; 34:4. Satan will cause a great falling away before the return of Jesus, 2 Thessalonians 2:3 as he uses his false prophets who think themselves higher than those they teach as they lord superior over their congregations as in the Pharisees that Jesus condemned in Matthew 23:13-38.