Ever since the time of Adam and Eve, the forces of good and the forces of evil have fought for control of the earth. When the End Times arrive, these opposing forces will meet in a final decisive battle to decide the ultimate fate of humankind. This final great battle is called Armageddon. It will continue for a thousand years, until the forces of evil are ultimately defeated. God will then create a perfect eternal kingdom on the earth, where all the good people will be able to live forever in happiness and peace.
This final battle between good and evil is predicted in the later books of the Old Testament, especially the Book of Daniel. That it will take place at a location called Armageddon is prophesied in Revelation 16:16, which says that the forces of God will finally overthrow all the kings of the earth there. Some experts have identified this location as being near an ancient Palestinian city named Megiddo where several important battles took place in biblical times.
In everyday language the word Armageddon is sometimes applied to a possible future global war, especially one that could cause such great destruction that civilization will be wiped out.
For more information about Armageddon, go to Armageddon Online.