And yet, Putin didn't invade on Trump's watch, now, did he? And if not for enemies domestic, I doubt he would have invaded on this watch, as Biden only became president through election fraud, and Trump was left with no choice but to step down or be the cause of a civil war.
We would do well to take care of enemies domestic, before we consider dealing with enemies foreign. Similar to the "First take the plank out of your own eye, that ye then may see clearly to remove the speck from your brother's eye".
4 A wicked and adulterous generation seeketh after a sign; and there shall no sign be given unto it, but the sign of the prophet Jonas. And he left them, and departed.
I always assumed the sign of Jonah was him being spit up by the fish. But that was not all of it. After being spit up it took almost a day to get into the city of Nineveh before Jonah began preaching to repent, and then he was saying that they needed to repent because in 40 days the city would be destroyed.
Jesus was crucified at Passover, He ascended on Shavuot, and then fifty days later on the 8th of Av was Pentecost, the feast of new wine. The spirit was poured out and from that point they began to preach for repentance. 40 jubilees later everything will be destroyed. To emphasize this point 40 years later the temple was destroyed and that was 40 years to the day, with the temple torn down on the 9th of Av.
The Jews were the first ones to experience foul weather, but the "Romans" (nations) will have our turn as well.
The siege of Jerusalem began around the same time they arrested Jesus. I believe that was 30AD (though experts say it could have been as late as 33AD). You have seven shemitahs and then the next year is the year of Jubilee. So if you take 40x49 you get 1960 years, add that to 30 and you get 1990. 1989 ended with the collapse of the USSR and everyone said that they would have peace and security. The 40 years beginning in 1990 are like one giant Jubilee year, concluding with 2030. Another way to look at this is that in 70AD the temple and Jerusalem were destroyed, add 1960 years to that and in 2030 it will be the world's turn with Armageddon.
We have three points of reference with a set time after each. We know when the Temple was destroyed (70AD), we know when they said Peace and Security (After the USSR collapsed Dec 26, 1989) and we have Jesus crucifixion (29Ad -- 33AD). We know that the Sign of Nineveh was given to Jerusalem the same year and exactly 40 years to the day from the preaching to repent the temple was destroyed. So we know that Pentecost was the 8th of Av of 30AD. We also know that 1960 years after the crucifixion they will all say "Peace and Security" only to be followed by "Sudden destruction". We also know that 1960 years after the destruction of the temple it will be the world's turn with Armageddon.