Hello KJV1611,
I see that you gave me a disagree. However, if you read the scripture, you will see that "this generation" the Jesus was speaking about, is directly linked to the signs that he listed. Therefore, those signs are what identify generation that He was referring to. And since those signs have not yet taken place, then you have no fulfillment.
It would be grammatically incorrect for Jesus to identify that generation as being the one where those signs take place and then say that the generation that He was currently living in is that generation. It would nullify the need for those signs that He previously mentioned as proof. From the time that Jesus quoted Daniel regarding the abomination being set up to the time that the temple was destroyed, we have no fulfillment of the abomination being set up, which is one of the signs and also marks the middle of the seven years
As far as those signs and those of Revelation affecting the entire world, I don't need to debate, because all one has to do is do a study on the seals, trumpets and bowl judgments to see that the entire world is affected.