However, the war soon became unpopular with most Bulgarians, who suffered great economic hardship and also disliked fighting their fellow Orthodox Christians in alliance with the Muslim Ottomans. The Russian Revolution of February 1917 had a great effect in Bulgaria, spreading anti-war and anti-monarchist sentiment among the troops and in the cities. In June Radoslavov's government resigned. Mutinies broke out in the army, Stamboliyski was released and a republic was proclaimed.