I maybe criticized for this, but technically it is an "orc", not an ork. Further, the largest ones are Uruk-Hai, created by Saruman for the Last War of Middle Earth. The usual orc could be defeated by a regular man fairly easily, but they would travel in large groups, terrorizing the Country side. See Here:

Regular negros in the USA are orcs, dangerous in large groups but can be defeated by a man. Armed they are dangerous unless the man is armed also and then orcs are at a disadvantage because they really can't handle weapons well.
Uruk-hai are the testosterone bloated orcs built for the last war here on Earth. They will bring down and destroy a White man unless he is very well trained in weapons. In the last stages of the old former United States of American, Uruk-hai were kept as pets by owners of sports teams as men might keep fighting dogs. After the revolution, the Northwest Republic expelled all the orcs living in the Northwest.
White Homeland! Northwest Front!
Uruk-Hai:
