fully, Russia. While the Moldavia-Wallachia unionist campaign, which had come to dominate political demands, was accepted with sympathy by the French, Russians, Prussians, and Sardinians, it was rejected by the Austrian Empire, and looked upon with suspicion by Great Britain and the Ottomans. Negotiations amounted to an agreement on a minimal formal union; however, elections for the ad-hoc divans in 1859 profited from an ambiguity in the text of the final agreement, which, while specifying two thrones, did not prevent the same person from occupying both thrones simultaneously and ultimately ushered in the ruling of Alexandru Ioan Cuza as Domnitor (Ruling Prince) over the United Romanian Principalities from 1862 onwards, uniting both principalities. Though internationally formally recognized only after the period of Cuza's reign, the Union was cemented by Ioan Cuza's unsanctioned interventions in the text of previous "Organic Law". In addition, the circumstances of his deposition in 1866, together with the rapid election of Prussian Prince Carol of Hohenzollern-Sigmaringen (who was backed by the increasingly important Prussia) and the Austro-Prussian War in the same time, made applying measures against the Union actually impossible. Following the Romanian War of Independence in 1877–78, Romania shook off formal Ottoman rule but eventually clashed with its Russian ally over its demand for the Southern Bessarabia region. Ultimately, Romania was awarded Northern Dobruja in exchange for Southern Bessarabia. The Kingdom of Romania subsequently emerged in 1881 with Prince Carol being crowned as King Carol I of Romania. The reign of Alexandru Ioan Cuza Alexandru Ioan Cuza took steps to unify the administrations of the two Romanian Principalities and gain international recognition for the Union. He also adopted several reforms, including the secularization of church lands, introduction of free primary education, a French-inspired civil code and penal code as well as a limited agrarian reform and one in the army. Opposition from the large-land-owners dominated parliament to Cuza resulted in a coup against him in 1864. He subsequently instituted authoritarian rule but his popular support, strong at the time of the coup, gradually waned as the land reform failed to bring prosperity to the peasant majority. Cuza was forced to abdicate in 1866 by the two main political groups, the Conservatives and the Liberals, who represented the interests of former large-land-owners. Although the event sparked some anti-unionist turmoil in Cuza's native province of Moldavia, it was quickly suppressed by the central authorities. The reign of