However, in May 1849, Tsar Nicholas I pledged to redouble his efforts against the Hungarian Government. He and Emperor Franz Joseph started to regather and rearm an army to be commanded by Anton Vogl, the Austrian lieutenant-field-marshal who had actively participated in the suppression of the national liberation movement in Galicia in 1848. But even at this stage Vogl was occupied trying to stop another revolutionary uprising in Galicia. The Tsar was also preparing to send 30,000 Russian soldiers back over the Eastern Carpathian Mountains from Poland. Austria held Galicia and moved into Hungary, independent of Vogl's forces. At the same time, the able Julius Jacob von Haynau led an army of 60,000 Austrians from the West and retook the ground lost throughout the spring. On July 18, he finally captured Buda and Pest. The Russians were also successful in the east and the situation of the Hungarians became increasingly desperate.