From the beginning when iniquity was found in the heart of Lucifer (EZEK 28:15) and he dared to utter those fateful words "I will..." thus denying the LORD in doing so (ISAIAH 14:12-14), a war ensued in the heavenly domain where the rebellious angels were dealt with. Then Satan infiltrated the Garden of Eden, and by his wiles, cunning and flattery appealed to our Parents the notion of being their own gods, and turn away from their Creator.When they fell from their first and glorious estate, they only then realized that instead of being transformed into 'gods' they were corrupted and malformed into sinners.
Yet the LORD GOD didn't leave this effrontery unchallenged; He declared war on the serpent at once:
GENESIS 3:15
15 And I will put enmity between thee and the woman, and between thy seed and her seed; it shall bruise thy head, and thou shalt bruise his heel.