Sure...and probably sometime during the latter half of this century. However, it will not be the traditional "nation vs. nation" war....but rather the Haves vs. the Have Nots. Overpopulation is the greatest threat to society, and it is getting worse every year. Automation and robotics are taking more jobs, and humans are procreating like rabbits...especially in the poorer nations and societies. At some point the billions of the impoverished are going to rebel, en masse, against those who are not, and all Hell is going to break loose.
A few years ago, the UN made a study that said that the maximum sustainable human population is about 6 billion....we are well over 7 billion, should reach 9 billion by 2050, and 12 billion by 2100. Within the next 30 to 50 years, those who are still working are going to get fed up with paying taxes to support millions who are not, and social programs will be getting cut back. The city streets will become filled with the homeless, and crime will be going off the charts.
Enjoy life today, as those in future generations are going to be living in a far different world. When the tipping point is reached, and the Have Not's win, society will revert to the dark ages. If the Haves win, nations will begin to unite under a common government and language, and humanity will begin a serious reach for the stars. At this point it is 50/50 as to who will prevail.