Moldavia borders on Ukraine in the northeast and on Walachia in the south. In Romania it comprises roughly the modern administrative divisions of Bacău, Galaţi, and Iaşi. Suceava and Iaşi, its historic capitals, and Galaţi, its port on the Danube, are the chief cities. Moldavia, a fertile plain drained by the Siretul, is the granary of Romania. Besides farming there is livestock raising, and orchards and vineyards dot the countryside. Lumbering and petroleum extraction are the main industries.