Complex sentence: As a result of the introduction of various forms of mechanized transport, starting with the steam powered trains in mid- 19th century, logistics have been vastly improved and the opposing armies were no longer limited in speed by the pace of march.
Split into simpler sentences: As a result of the introduction of various forms of mechanized transport, starting with the steam powered trains in mid- 19th century. Logistics have been vastly improved and the opposing armies were no longer limited in speed by the pace of march.