Ukrainian forces continued to control most of eastern Galicia and were a threat to Lviv itself until May 1919. During this time, according to Italian and Polish reports, Ukrainian forces enjoyed high morale (an Italian observer behind Galician lines stated that the Ukrainians were fighting with the "courage of the doomed") while many of the Polish soldiers, particularly from what had been Congress Poland, wanted to return home because they saw no reason to fight against Ruthenians over Ruthenian lands; the Polish forces were outnumbered by two to one and lacked ammunition. Despite being initially outnumbered, the Poles had certain advantages. Their forces had many more and better-trained officers resulting in a better disciplined and more mobile force; the Poles also enjoyed excellent intelligence and, due to their control of railroads behind their lines, were able to move their soldiers quite quickly. As a result, although the Poles had fewer total troops than did the Ukrainians, in particularly important battles they were able to bring in as many soldiers as did the Ukrainians.