<<Who said our generation?>>
The WTS of course...so that would be the current overlapping 1914 generation... whatever that means.
<<These signs will be during the future Tribulation of Rev. 6-19 (Daniel's 70th week with gap of Church Age between 69-70) immediately preceding Armageddom/Second Coming/Millennium.>>
The tribulation spoken of in Mt 24/Mk.13/Lu21 (which was unique, and never to be repeated) occurred in the first century and culminated with the destruction of Jerusalem in 70 AD. Luk 21:20-24 says:
20 But when ye see Jerusalem compassed with armies, then know that her desolation is at hand. 21 Then let them that are in Judaea flee unto the mountains; and let them that are in the midst of her depart out; and let not them that are in the country enter therein. 22 For these are days of vengeance, that all things which are written may be fulfilled. 23 Woe unto them that are with child and to them that give suck in those days! for there shall be great distress upon the land, and wrath unto this people. 24 And they shall fall by the edge of the sword, and shall be led captive into all the nations: and Jerusalem shall be trodden down of the Gentiles, until the times of the Gentiles be fulfilled.
So the great tribulation and wrath on Israel spoken about in Matthew 24, Mark13 and Luke 21 already occurred. No one now need worry abot fleeing Jerusalem to the Judaen hills or pray that their flight might not be in winter. Pregnant women need not be concerned; people on Judaen housetops need not bring an extra jacket with them in case...This was to be a local destruction; the Jews no longer need worry about being shipped off into all nations where they already are.