You can use the noun dissension for situations where people just can't agree or get along. There is often dissension between labor unions and governments vying for funds, or even between siblings — vying for attention.

A dissension is a disagreement, or difference of opinion, and the meaning hasn't changed since the word first came into use in French in about the 12th century. Sometimes a dissension is simply a brief and easily resolved disagreement, and at other times it might last for thousands of years. People in the Balkans have had centuries of religious dissension, alternating with periods of peaceable coexistence.

Definitions of dissension
  1. noun
    disagreement among those expected to cooperate
    synonyms: discord
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    discord resulting from a clash of ideas or opinions
    division, variance
    discord that splits a group
    type of:
    the speech act of disagreeing or arguing or disputing
  2. noun
    a conflict of people's opinions, actions, or characters
    synonyms: disagreement, dissonance, misunderstanding
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    accord, agreement
    harmony of people's opinions or actions or characters
    lack of unity (usually resulting from dissension)
    a serious disagreement between two groups of people (typically producing tension or hostility)
    type of:
    a state of opposition between persons or ideas or interests
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