revision preference src: Of all the new states established in central Europe after 1918, only Czechoslovakia preserved a democratic government until the war broke out. Thus, despite regional disparities, its level of development was much higher than that of neighboring states. <SEP> tgt: Of all the new states established in central Europe after 1918, only Czechoslovakia preserved a democratic government until the war broke out. Despite regional disparities, Czechoslovakia's level of development was much higher than that of neighboring states.