Krasnodar, Maikop and Pyatigorsk are falling to our front. We must get to the mountains soon, to be able to keep up the momentum of the pursuit. The Caucasus is the real goal of our all our wishes. We are looking forward to the mountains, to the woods, to the snow and the spring water, to strange people, strange customs, Caucasian girls! (with their hot blood and smouldering eyes) and not least to the exoticism and romanticism that's linked to the name of the Caucasus. Yet probably it will be the biggest disappointment of all up to now in Russia, the Don, the steppe, where were its Cossacks and where could we hear the melancholy Russian folk songs?!?
Last bit is a bit free but as we've said that's what the writer's trying to convey.