Experts say it's unlikely, but Pakistan's lack of a "No First Use" doctrine for nuclear weapons means it's not impossible.
As food and water sources become threatened by changing weather patterns, experts say these are the areas most susceptible to instability and bloodshed.
A Palestinian protester uses a slingshot to throw stones toward Israeli forces during clashes following a protest along the border with Israel, east of Gaza City, on April 5th, 2018.
Aid from external rivals is a key variable that can complicate democratization.
President Obama has repeatedly said the U.S. is targeting Al Qaeda and “associated forces.” But the government won’t say who those forces are.