This of course would have been difficult before the popularization of television and the Internet. But it is now common for people worldwide to simultaneously witness events via television and the Internet. The inhabitants of the earth will gloat over them and will celebrate by sending each other gifts, because these two prophets had tormented those who live on the earth. In Zechariah, chapter 14, the prophet says a time will come when nations gather to attack Jerusalem. This might be a fitting description for modern warfare if it were described by a person who lived 2500 years ago, as Zechariah did.
Chemical weapons are capable of causing rapid deterioration of flesh.
And a blast of heat from a nuclear weapon could have a similar affect. Some Bible scholars, however, believe that this plague could refer to a supernatural event from God to protect the Holy Land. This prophecy has been at least partially fulfilled already. The Jews recaptured Jerusalem during the Six Day War in 1967. Since then, people from around the world have toured Jerusalem to visit various sites that are important to the history of Judaism and Christianity.