The problem my brother in Christ, is that you are making the same error the first century Jews made, given their reasons for rejecting Jesus as the Christ. One very strong reason they rejected the Messiah (being the same reason why modern day secular Jews reject Jesus) is because "Elijah" had not physically returned, per their expectation.
It doesn't matter? Looking to the prophetic events of “how” and “where” and its “numbers” given in the prophecy doesn't matter? Then why bother giving us prophecy at all if it “doesn't matter?” Well I'll tell you, because it “does matter!!” What are we to look for concerning the fulfillment of the 6th trumpet? That they would be “loosed AT the River Euphrates” (Rev. 9:14). And what would be loosed we are told in Rev. 9:16, “And the number of the army of the horsemen were two hundred thousand thousand; and I heard the number of them.” Now John said he “heard” the number, and John was told to write down “all” that he would “see and hear” (Rev. 1:19; Rev. 22:8). So since John heard the number, he wrote it down in the way they wrote numbers in their time, “---two hundred thousand thousand;--.”
They reasoned among themselves that Elijah departed in the flesh, and would return in the flesh. And unless Elijah physically returns in the flesh, just as He departed, then it was impossible for Jesus to be the Christ, sense Elijah did not come before Him (in the flesh). Sound familiar?
You, in the same way, are reasoning within yourself, that because the armies were not as immense, (or at least closer to 200,000,000), then it's impossible to consider the 6th Trumpet fulfilled in the 60's AD. This requires the use of the eye, and not the mind. On a side note, should we not also consider that some of those armies were perhaps demons? I'm not saying that they were, but who's to say that Demons were not included in this event? At any rate, the Prophesy fits well between the 5th and 6th seal, although you do not agree simply on the total number of troops sent upon Apostate Israel. This shows a lack of faith, and more trust in our eyes, would you not agree?
If you read my post about how prophesy is fulfilled, you should have more than ample proof that God is in control of History, but doesn't always fulfill History as it is written. In considering this, even brother Beck showed you that "Myriads" of people showed up to hear Jesus speaking, is the same "Myriads" of soldiers who came crashing down upon Apostate Israel.
Soldier counts are not enough reason to reject the fulfillment of the 6th Trumpet in the first century, especially when we do not have an accurate head count; only written sources, which were probably guesses or estimations at best.
The US Air Force has less than 400,000 troops, yet at no time are all 400,000 thousand sent to combat locations at the same time. It only takes about 100,000 spread all over the globe to deliver lethal Air Power upon our enemies; very lethal and effective.
The Roman military and their allies were attacking a rogue group of zealets that did their best to defend their city. But Roman technology was far too superior. Without the help of God (which is what the Jews thought they would receive), Rome defeated them, and fulfilled the Prophets who spoke of their pending destruction. More than a million Jews were killed, which (I'm certain) took way more than 500,000 soldiers combined (Rome and her allies). My estimations are based from the time the war started, to the time everything eventually came to an end.
Now let us consider another way of expressing our ideas. I'm outside cutting grass, and suddenly I come upon a beehive. "OUCH!" I yell, as I'm stung nearly all over my body. "Man! Feels like I've been stung by a thousand bees!" Yet in reality, I was probably only stung by a hundred or so. Get my point? That's what John was conveying to his audience, that their would be an enormously large army to attack the earth/land. The size DOES NOT matter.
Israel is more than just a race; it is more than just a nation; it is the people of God, from faith, by faith, and only faith. Those who assemble in the name of Christ Jesus, embrance Israel because they are Israel