Talk about a biblical reference. Greenpeace and World March activists staged a "die-in" to protest nuclear weapons at Mount Megiddo on Wednesday. Megiddo, according to Judeo-Christian sources, will be the place where good and evil slug it out at the end of days. The term Armageddon is derived from the place name. The protest came just days after US President Barack Obama won the Nobel Peace Prize in part for declaring his intentions to rid the world of nuclear weapons. According to Greenpeace, there are 23,000 nuclear warheads in the world, and just 500 detonated at once would cause an Ice Age for 10 years. During the "die-in," activists displayed a banner measuring eight meters by three meters which read "Disarmament or Armageddon." Â Sharon Dolev, peace and disarmament campaigner for Greenpeace Tel Aviv, warned of the extreme danger of nuclear weapons, but also of the simplicity of their removal. "The biggest threat to all of us is also the easiest to abolish. It is time that we all understand. The bomb represents the biggest threat. It is the opposite of security and therefore it is time our leaders stop playing with numbers and set a date to begin universal negotiations leading to a step-by-step mutual disarmament," he said in a statement. "The arrival of the World March for Peace and Non-violence to Israel reminds us that the struggle for a safe, peaceful world free of nuclear weapons, is a universal one," he said.