http://www.foxnews.com/story/0,2933,507804,00.html
"The HULC exoskeleton is self-powered and allows a soldier flexibility for upper-body lifting and fluid movement.
"It transfers the weight from heavy loads to the ground through battery-powered, titanium "legs" that attach behind the soldier's legs. An builtin micro-computer ensures the exoskeleton moves in sync with human body."
I think they should have come up with a different acronym, though. Greenskins don't wear power armor