MU meaning in Community ?

Maritime Union (French: Union des Maritimes) is a proposed political union of the three Maritime provinces of Canada – New Brunswick, Nova Scotia, and Prince Edward Island – to form a single new province. This vision has sometimes been expanded to a proposed Atlantic Union, which would also include the province of Newfoundland and Labrador.

The idea has been proposed at various times throughout Canadian history. Most recently, it was reintroduced in November 2012 by Stephen Greene, John D. Wallace and Mike Duffy, three Conservative Senators from the region. As of 2012, a union of the three Maritime provinces would have a population of approximately 1.8 million, becoming the fifth largest by population, out of eight remaining Canadian provinces.

The Maritime provinces already cooperate to jointly provide some government services, especially in the areas of purchase and procurement.