Ezekiel 38 & 39 describe one of the most important prophecies about the end times in the Bible. The attack on Israel by God/Magog never has taken place, so it definitely is a future event. Many people believe that this attack will take place at the beginning of the final seven years. On the other hand, I am convinced that it will take place at the very end, when Jesus returns to earth. More about this can be found in my Final Battles commentary here:

http://www.tedmontgomery.com/bblovrvw/GogAntichrist