June 29, 2012:
The U.S. Army has decided to scrap its digital pattern camouflage combat uniforms for the more effective, but more expensive, MultiCam. In the last decade both the army and marines adopted new, digital camouflage pattern field uniforms. But in Afghanistan U.S. soldiers noted that the marine digital uniforms (called MARPAT, for Marine Pattern) were superior to the army UCP (Universal Camouflage Pattern). There's been growing dissatisfaction with UCP, and it has become a major issue because all the infantry have access to the Internet, where the constant clamor for something better than UCP forced the army to do something. This is ironic because UCP is a variant of MARPAT but a poor one, at least according to soldiers who have encountered marines wearing MARPAT. Even more ironic is that MARPAT is based on research originally done by the army. Thus some of the resistance to copying MARPAT is admitting the marines took the same research on digital camouflage and produced a superior pattern for combat uniforms.
A digital camouflage pattern uses "pixels" (little square or round spots of color, like you will find on your computer monitor if you look very closely), instead of just splotches of different colors. Naturally, this was called "digital camouflage." This pattern proved considerably more effective at hiding troops than older methods. For example, in tests, it was found that soldiers wearing digital pattern uniforms were 50 percent more likely to escape detection by other troops, than if they were wearing standard green uniforms. What made the digital pattern work was the way the human brain processed information. The small "pixels" of color on the cloth makes the human brain see vegetation and terrain, not people. One could provide a more technical explanation but the "brain processing" one pretty much says it all.
Another advantage of the digital patterns is that they can also fool troops using night vision scopes. American troops are increasingly running up against opponents who have night vision optics, so wearing a camouflage pattern that looks like vegetation to someone with a night scope is useful.
The easiest thing for the army to do was to just adopt MARPAT. The marines didn't like this but they really couldn't stop it. Instead the army went with another contender: MultiCam. This was adopted by SOCOM (special operations command) after their commandos had second thoughts about UCP. SOCOM went looking for something new and found another digital pattern called MultiCam (cleverly designed to hide troops in many different environments). Many in the army preferred this one but MultiCam was about three times more expensive.
SOCOM operators have their own budget and had many of their guys out in the field wearing MultiCam, rather than UCP. That proved the superiority of MultiCam to most troops. SOCOM has always had a larger budget, per capita, than the rest of the army, and its operators have a lot of discretion to use whatever weapons or gear they thought best for the job. Apparently, on some jobs, MultiCam was considered more suitable than UCP and is now used most of the time.
The army tried both MARPAT and MultiCam in Afghanistan and found MultiCam more effective and popular. The fact that MultiCam was a favorite with SOCOM was a deciding factor. So, after nearly a decade of use, UCP gets replaced by its more expensive and, at least in Afghanistan, much more effective competitor, MultiCam.