Oriental Revolutionary Movement (in Spanish: Movimiento Revolucionario Oriental) is a left-wing political movement in Uruguay. The organization is led by Ariel Collazo. MRO was founded on April 21 1961 following a split from the Partido Blanco.From 1967 to 1985 it had an armed wing Oriental Revolutionary Armed Forces (Fuerzas Armadas Revolucionarias Orientales).In 1971 MRO was one of the founding organizations of Frente Amplio.