Watching this kind of soldier marches is always impressive; it looks easy from the sidelines, but these marches take days of training and relentless discipline and patience. The changing of the guard at the Buckingham Palace is so impeccable and entertaining to watch, it has become a popular London attraction.
In a similar way, the soldiers in the photo exhibit some impressive skills. Their matching uniform and their perfect coordination make it seem as if one person has been duplicated into hundreds of copies. In Hollywood, they often create this effect using CGI technology, since they can’t afford to put so many resources on something that can be made on a computer. This photo, however, is real.