They were called Ghosts.
Silent, deadly, ruthless.
No one knew where they came from, or how they operated.
They came in massive waves, overcoming entire armies within minutes.
Russia was the first to fall. Moscow was taken without even a single shot fired.
The United States was next.
The most powerful military in the world could not even hold a candle to them.
Next was China.
The largest military in the world could not do anything either.
And the nations continued to fall.
France, Germany, Spain, the Koreas, Japan.
All of these fell within days.
The Ghosts were almost the perfect soldiers.
They followed orders without question, felt no fear, and showed no mercy.
They received none, either.
All the nations that fell did not go down without a fight.
Millions of Ghosts fell to the barrels of weapons.
But yet they still came, throwing thousands of soldiers against defensive positions like the soldiers were cannon fodder.
It turned out they were exactly that.
The surviving military forces of the world banded together in an attempt to destroy the Ghosts.
A special forces squad, composed of the best men in every single military.
They are the Phantoms.
They are our last hope.