It is a digital camoflage pattern created and used by the Canadian Army. There is CADPAT-TW (Temperate Woodland), and CADPAT-AR (Arid Regions)
It has been adopted by the Marines and made into their own pattern, Marpat. The digital pattern works very well.
in the bush
The Canadian CADPAT is what started the whole digital camouflage craze.
American 1 : hey we have a large military to compensate for our tiny penises! we need something like that
American 2: hey I stole some cadpat lets recolor and call it marpat adn tell teh world we invented it even though theres a 3 year difference!
Joe the Marine: That's so cute. If you guys up there ever have to do some serious fighting outside of the coffee shop you can borrow my Marpat and do it in style.