Coalition

A coalition is a pact or treaty among individuals or groups, during which they cooperate in joint action, each in their own self-interest, joining forces together for a common cause. This alliance may be temporary or a matter of convenience. A coalition thus differs from a more formal covenant. Possibly described as a joining of 'factions', usually those with overlapping interests rather than opposing.

Politics and government

A coalition government, in a parliamentary system, is a government composed of a coalition of parties. In Australia, the Coalition is also used to refer to an alliance (coalition agreement) of three parties (the Liberals, Nationals and Country Liberals) existing in federal politics since 1922 - this constitutes a parliamentary coalition. A coalition of parties is also an electoral fusion. The Cambridge Dictionary defines coalition as, "the union of different political parties or groups for a particular purpose, usually for a limited time".

In international relations, a coalition can be an ad hoc grouping of nations united for a specific purpose. Sometimes, such groups are diverse and are characterized by some degree of commonalities. Sometimes, the degree of uncommonalities would lead some to perceive the group's bond as being ordinarily unlikely; here it can indicate the fact the historical ties may no longer be in operation, and the coalition members, instead, are joined by a new intention, not necessarily prior bonds.