Regarding Jesus' return to earth, Jehovah's Witnesses believe that it occurred in l914 as an invisible return. That event is described in Zechariah 14:4, which states, "... and his feet will actually stand in that day upon the mountain of the olive trees which is in front of Jerusalem on the east." If Jesus has no body and if his return was invisible, how do you explain this verse?
The context concerns the war of Armageddon. Besides, Bible prophecy is not meant to be taken literally. The Jerusalem that is destined to be attacked is not the literal city. The Christian writers make it plain that "Jerusalem" symbolizes the heavenly kingdom. So, those who are due to come under attack are the anointed sons of the kingdom - not the nuclear armed Zionists that happen to reside in the same place as the original Jews.
Furthermore, we may be certain that those who do not understand the most basic and elemental doctrines cannot possibly hope to understand the deep and hidden things of prophecy.