US Army Special Forces operators practice their skills with the Fast Rope.
It's Called Erosion - Go Navy Beat Army!
The power of erosion is not only inarguable but an unstoppable force of nature. The ocean inevitably wears down the earth within time through strength and consistency. Sailors are forged by the sea and shaped by the influence of its authority. In a battle between land and sea; the sea will win every time. Go Navy, Beat Army!