There are many names and labels for it - a national unity government, a government of national unity, or a national union government. But basically, it means a broad coalition government, consisting of all parties or all major parties in the legislature or Parliament.
A unity government is also usually formed during a time of war or other national emergency, and involves the disbandment of coalitions and the setting up of a singular political entity.
In a unity government, there is no division along party lines nor any distinction of politicians but rather a single unified mind-set in governance. Truly unified governance also means there would be no such thing as a government or an opposition, just one big team.



