Romania had raised an army and declared war on Bulgaria on 10 July(27 June) as it had from 28(15) June officially warned Bulgaria that it would not remain neutral in a new Balkan war, due to Bulgaria's refusal to cede the fortress of Silistra as promised before the First Balkan war in exchange for Romanian neutrality. Its forces encountered little resistance and by the time the Greeks accepted the Bulgarian request for armistice they had reached Vrazhdebna, from the center of Sofia.