I am a olive treeWhat I believe right now in my life through my interpretation of the bible is this; satan was doing what the Lord created him to do when he "tempted " Adam and Eve(The Fall). I do not believe the war in heaven or satans fall from heaven was until either Jesus's death or His resurrection. During this three day period satans job became void. The Lord could no longer see or know of man's sin because of what my Savior Jesus of Nazareth did on the cross. Jesus is now the judge and prosecuter. satan could no longer stand before the Lord and accuse the saints day and night. This enraged satan and a war started and satan and a third of the angels were cast out of heaven to the earth.
I don't know how you believe about Genesis 6 but that is a separate event from satans fall from heaven.
I don't necessarily believe we can understand the creation of heaven and earth in the sense of time. I think it's arrogance of man to say it was 6 earth days and that's it. That being said I think by the time day 6 came around satan had already started his corruption of all of creation. I believe heaven was corrupted before the earth was created. I do not believe the current heaven was holy if ever for very long.
In your question you said," did Jesus cause war in heaven?" Yes, by what He did through His death, burial, and resurrection. The war was to remove satan and his curruption. So, we are praying for new earth to come where satan will not be which is the Father's Will.
If this still does not answer your question please be patient with me. I am trying my best. As CS Lewis said, " Don't be your best but try your best."
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