National unity refers to a type of government formed by a group of parties, generally during times of emergency. These governments are said to be unified by a love of country rather than by political affiliation.
In times of national emergency, such as war or a severe economic crisis, political parties may put aside their differences and cooperate to further the best interests of the country. In these situations, no single party is given majority or recognized as the leading party. Though the parties may have opposing values or ideals, they are united by a common interest in the well-being of the country.