LuciadCPillar provides support for the MIL-STD-2525B, MIL-STD-2525C, MIL-STD-2525D, APP-6A, APP-6B and APP-6C military standards, and partial support for APP-6D. These standards define a symbol set that is used to plan and execute military operations in support of Command, Control, Communications, Computers, and Intelligence (C4I) functions. The MIL-STD-2525 standards were developed by the United States Department of Defense (DOD), while the APP-6 standards were developed by the North Atlantic Treaty Organization (NATO).