"It was not because you were the most numerous of all the peoples that Jehovah showed affection for you and chose you, for you were the smallest of all the peoples." (Deuteronomy 7:7)
There is no group that is too small to be noticed by Jehovah. Any group that claims to represent Him is certainly noticed by Him.
"Aha! the As·syrʹi·an,
The rod to express my anger
And the staff in their hand for my denunciation!
I will send him against an apostate nation,
Against the people who infuriated me;
I will command him to take much spoil and much plunder
And to trample them like mud in the streets.
But he will not be inclined this way
And his heart will not scheme this way;
For it is in his heart to annihilate,
To cut off many nations, not a few."
(Isaiah 10:5-7)
Israel was a small nation, and from the point of view of the nations, perhaps there were other nations from which the Assyrians could have stripped more spoil, but Jehovah put it into the heart of the Assyrians to go against "an apostate nation."
The locusts of Revelation only attack for five months, about 150 days.
Daniel 8:13,14 says "And an army was given over, together with the constant feature, because of transgression; and it kept throwing truth to the earth, and it acted and had success. And I heard a holy one speaking, and another holy one said to the one speaking: “How long will the vision of the constant feature and of the transgression causing desolation continue, to make both the holy place and the army things to trample on?” So he said to me: “Until 2,300 evenings and mornings; and the holy place will certainly be restored to its right condition.”
One evening plus one morning equals one day. 2,300 evenings and mornings is the same as 1,150 mornings plus 1,150 evenings, which is the same as 1,150 days.
As far as the timeline of the great tribulation goes, it seems that after Satan is cast out of heaven and riles up the UN, the initial part of the attack on religion will be very harsh for 150 days. By the 1,150th day, Jesus' angels will have refined the Christian congregation. (Removing the weeds and leaven, gathering the wheat together.) The tribulation will still last the full 3 1/2 years. The UN will rule as the dominant world power for 3 1/2 years, as the feet of the Daniel chapter 2 dream image.