Hi David, 

The Gog-Magog War you speak of is the SECOND Gog-Magog War  brought on by Satan  as his last act of rebellion against God at the end of the 1 ,000 years after he is released from the pit. Revelation 20:7-10 tells the account of it. The FIRST Gog-Magog War is brought on by God Himself as judgment against sinful Israel according to Ezekiel 38:15-16.

Blessings Brother