Termites are insects that live in colonies composed of thousands of specimens and which appear to function as a single organism. Individual insects will also sacrifice themselves to protect or benefit the colony.
However, rival termite colonies oftentimes act as enemies. When two colonies compete for resources, both colonies can be harmed. There are several well-documented subterranean termite colonies that stretch for acres in barren deserts. These super colonies are composed of millions of insects each and can organize attacks against rival colonies.
Ants are also termite enemies. Battles between termites and ants are common. Although ants attack termites as a source of food, termites usually only attack ants in defense of the colony. Soldier termites are capable fighters and will sacrifice themselves to protect their colonies.