Complex sentence: As there are only 3 surviving civil war era ironclads in existence, CSS Neuse, USS Cairo, CSS Jackson soon "Cairo" will be the only one out doors in the brutal Southern climate.
Split into simpler sentences: As there are only 3 surviving civil war era ironclads in existence, CSS Neuse, USS Cairo, and CSS Jackson. Soon "Cairo" will be the only one out doors in the brutal Southern climate.