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
Italian colonists in the Dodecanese as a naval staging area for its invasion of Crete in 1940. After the surrender of Italy in September 1943, the islands briefly became a battleground between the Germans, British and the Italians (the Dodecanese Campaign). The Germans prevailed, and although they were driven out of mainland Greece in 1944, the Dodecanese remained occupied until the end of the war in 1945, during which time nearly the entire Jewish population of 6,000 was deported and killed. Only 1200 of these Ladino-speaking Jews survived, thanks to their lucky escape to the nearby coast of Turkey with some help from the Italian