Final answer:
In a multi-party coalition, two major political parties with differing ideologies unite to form a government when neither has a clear majority in the legislature.
Explanation:
Multi-party coalition is the term used to describe the arrangement of a multi-party parliament where the two strongest political parties with opposing ideologies form a government together. This occurs when no single party has a clear majority in the legislature, leading to the need for cooperation and compromise.
One example of this is the current situation in countries like Germany, Italy, and Israel, where coalition governments are common due to the presence of multiple political parties.
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