Beginning in 2014, Ukraine has been in a state of revolution and unrest with two breakaway regions (Donetsk and Lugansk) attempting to join Russia as full federal subjects. ("See War in Donbass.") On March 16, a referendum was held in Crimea leading to the "de facto" secession of Crimea and its largely internationally unrecognized annexation to the Russian Federation as the Republic of Crimea.