The world's robot density is highest in Europe, although Japan makes use of robots at twice the rate of any other country.
There are now 1 million industrial robots toiling around the world, and Japan is where they're the thickest on the ground. It has 295 of these electromechanical marvels for every 10000 manufacturing workers -- a robot density almost 10 times the world average and nearly twice that of Singapore (169), South Korea (164), and Germany (163).
When the war with the machines starts, Africa will be humanity's last stronghold.