The surrender at Perevolochna was the capitulation of almost the entire Swedish army on 30 June 1709 (O.S.) / 1 July 1709 / 11 July 1709 (N.S.). It signified the virtual annihilation of the once formidable Swedish army after the defeat at Battle of Poltava, and paved the way for the eventual Russian victory in the Great Northern War. After the Battle of Poltava, Charles XII escaped to Moldavia, a vassal state of the Ottoman Empire.