Greece was diplomatically isolated and vulnerable, as the Corfu incident of 1923 showed, and the economic foundations of the state were in ruins after a decade of war and the sudden increase of the country's population by a quarter. The refugees, however, also brought a new air into Greece. They were impoverished now, but before 1922 many had been entrepreneurs and well-educated. Staunch supporters of Venizelos and the Republic, many would radicalize and play a leading role in the nascent Communist Party of Greece.