Serbia's turbulent history of the late 19th and early 20th century created some hard-boiled military leaders to the front lines of World War 1. One of these was Stepa Stepanovic - but he was not just hard boiled, he also stood with his country throughout the entire war which included the Serbian Exodus to Korfu.

Cavalry was seen as leftover from the past in the dawn of modern warfare during World War 1. But Bulgarian General Ivan Kolev was one of the few who still saw a place for them on the modern battlefield. He reinvented the cavalry role and used them together with early motorised infantry - with great success during the Romanian campaign. He died before the war was over but people like August von Mackensen or Heinz Guderian were still impressed with his legacy.