Borders change when people get defeated.
some days i wish we never invented the atombombs and nuclear weapons.
Then nations would conquer eachother much easier. Lets say we had 1920s-30s techlevel in Weapons across the board.
Then nations could invade without worrying about Nukes.
Pakistan and India wouldnt be safe for total domination, Middle-East wouldnt be safe, all would be up for conquering by other nations and alliegiances.