Dodecanese relative quiet and prosperity. In 408 BC, the three cities of Rhodes had united to form one state, which built a new capital on the northern end of the island, also named "Rhodes"; this united Rhodes was to dominate the region for the coming millennia. Other islands in the Dodecanese also developed into significant economic and cultural centers; most notably, Kos served as the site of the school of medicine founded by Hippocrates. However, the Peloponnesian War had so weakened the entire Greek civilization's military strength that it lay open to invasion. In 357 BC, the islands were conquered by
Dodecanese Regiment that no operation in the Dodecanese had been planned or was possible. The GHQ was firmly convinced that the liberation of the Dodecanese would be a postwar procedure depending on the outcome of the Albanian Front. After a short but intensive training, the Dodecanese Regiment received the war flag on January 12, 1941. It was the only adequately trained, fully manned, staffed and equipped regiment available as a reserve, and therefore it became the core of the newly formed 20th Infantry Division, which soon was to include the also newly formed but thinly manned 35th and 80th Regiments, comprising low