Hunter gatherer societies fought all the time for control of hunting grounds.
What's interesting it's that researchers that lived with the Yanomami and other Amazonian peoples noted that most inter tribal conflicts weren't about competition for food sources-that was rather plenty- but instead for women. In polygamous societies, high status males acquired many wives and young males frequently kidnapped neighboring tribe's women which sparked constant retaliatory raids.
What's interesting it's that researchers that lived with the Yanomami and other Amazonian peoples noted that most inter tribal conflicts weren't about competition for food sources-that was rather plenty- but instead for women. In polygamous societies, high status males acquired many wives and young males frequently kidnapped neighboring tribe's women which sparked constant retaliatory raids.