I believe you are wrong on two counts:
1. The Tribulation is NOT for the children of God.
2. A global war does NOT trigger the Tribulation.
If you wish to see what triggers the Tribulation, study Revelation 12 and 13.
If you look at the order of things according to the gospels and the book of revelation combined you will see it does start with a global war.
And according to Jesus we will go through the tribulation as well.
THE WAR
Mat 24:6-7 And news will come to you of wars and talk of wars: do not be troubled, for these things have to be; but it is still not the end. For nation will be moved against nation, and kingdom against kingdom, and men will be without food, and the earth will be shaking in different places;
Luk 21:10-11 Then said he unto them, Nation shall rise against nation, and kingdom against kingdom; and there shall be great earthquakes, and in divers places famines and pestilences; and there shall be terrors and great signs from heaven.
Rev 6:2-8 And I saw, and behold, a white horse, and he that sat thereon had a bow; and there was given unto him a crown: and he came forth conquering, and to conquer. And when he opened the second seal, I heard the second living creature saying, Come. And another
horse came forth, a red horse: and to him that sat thereon it was given to take peace from the earth, and that they should slay one another: and there was given unto him a great sword. And when he opened the third seal, I heard the third living creature saying, Come. And I saw, and behold, a black horse; and he that sat thereon had a balance in his hand. And I heard as it were a voice in the midst of the four living creatures saying, A measure of wheat for a shilling, and three measures of barley for a shilling; and the oil and the wine hurt thou not. And when he opened the fourth seal, I heard the voice of the fourth living creature saying, Come. And I saw, and behold, a pale horse: and he that sat upon him, his name was Death; and Hades followed with him. And there was given unto them authority over the fourth part of the earth, to kill with sword, and with famine, and with death, and by the wild beasts of the earth.
CHURCH PERCICUTED 1st TIME
Mat 24:9-13 Then shall they deliver you up unto tribulation, and shall kill you: and ye shall be hated of all the nations for my name's sake. And then shall many stumble, and shall deliver up one another, and shall hate one another. But take ye heed to yourselves: for they shall deliver you up to councils; and in synagogues shall ye be beaten; and before governors and kings shall ye stand for my sake, for a testimony unto them. And ye shall be hated of all men for my name's sake: but he that endureth to the end, the same shall be saved.
Luk 21:12-13 But before all these things, they shall lay their hands on you, and shall persecute you, delivering you up to the synagogues and prisons, bringing you before kings and governors for my name's sake. It shall turn out unto you for a testimony.
Rev 6:9-11 And when he opened the fifth seal, I saw underneath the altar the souls of them that had been slain for the word of God, and for the testimony which they held: and they cried with a great voice, saying, How long, O Master, the holy and true, dost thou not judge and avenge our blood on them that dwell on the earth? And there was given them to each one a white robe; and it was said unto them, that they should rest yet for a little time, until their fellow-servants also and their brethren, who should be killed even as they were, should have fulfilled
their course.
Instructions:
Mar 13:11 And when they lead you
to judgment, and deliver you up, be not anxious beforehand what ye shall speak: but whatsoever shall be given you in that hour, that speak ye; for it is not ye that speak, but the Holy Spirit.
Luke 21:14-15 Settle it therefore in your hearts, not to meditate beforehand how to answer: for I will give you a mouth and wisdom, which all your adversaries shall not be able to withstand or to gainsay.
ABOMINATION OF DESOLATION 2nd CHURCH PERCECUTION
Dan 11:30-31 For ships of Kittim shall come against him; therefore he shall be grieved, and shall return, and have indignation against the holy covenant, and shall do
his pleasure: he shall even return, and have regard unto them that forsake the holy covenant. And forces shall stand on his part, and they shall profane the sanctuary, even the fortress, and shall take away the continual
burnt-offering, and they shall set up the abomination that maketh desolate.
Mat 24:15 When therefore ye see the
abomination of desolation, which was spoken of through Daniel the prophet, standing in the holy place (let him that readeth understand),
Mar 13:14-17 But when ye see the
abomination of desolation standing where he ought not (let him that readeth understand), then let them that are in Judaea flee unto the mountains: and let him that is on the housetop not go down, nor enter in, to take anything out of his house: and let him that is in the field not return back to take his cloak. But woe unto them that are with child and to them that give suck in those days!
Luk 21:22 But when ye see Jerusalem compassed with armies, then know that her desolation is at hand. 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. For these are days of vengeance, that all things which are written may be fulfilled.
Luk 21:24 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.
Dan 11:33-37 And they that are wise among the people shall instruct many; yet they shall fall by the sword and by flame, by captivity and by spoil,
many days. Now when they shall fall, they shall be helped with a little help; but many shall join themselves unto them with flatteries. And some of them that are wise shall fall, to refine them, and to purify, and to make them white, even to the time of the end; because it is yet for the time appointed. And the king shall do according to his will; and he shall exalt himself, and magnify himself above every god, and shall speak marvellous things against the God of gods; and he shall prosper till the indignation be accomplished; for that which is determined shall be done. Neither shall he regard the gods of his fathers, nor the desire of women, nor regard any god; for he shall magnify himself above all.
Rev 13:15-18 And it was given
unto him to give breath to it,
even to the image of the breast, that the image of the beast should both speak, and cause that as many as should not worship the image of the beast should be killed. And he causeth all, the small and the great, and the rich and the poor, and the free and the bond, that there be given them a mark on their right hand, or upon their forehead; and that no man should be able to buy or to sell, save he that hath the mark,
even the name of the beast or the number of his name. Here is wisdom. He that hath understanding, let him count the number of the beast; for it is the number of a man: and his number is Six hundred and sixty and six.
JESUS DOES NOT RETURN UNTIL AFTER THE TRIBULATION
Mat 24:30 and then shall appear the sign of the Son of man in heaven: and then shall all the tribes of the earth mourn, and they shall see the
Son of man coming on the clouds of heaven with power and great glory.
Mar 13:26-27 And then shall they see
the Son of man coming in clouds with great power and glory. And then shall he send forth the angels, and shall gather together his elect from the four winds, from the uttermost part of the earth to the uttermost part of heaven.