In 1714 far greater Swedish naval assets were diverted towards Finland, which managed to cut the coastal sea route past Hangö cape already in early May 1714. This caused severe trouble for Russian supply route to Turku and beyond as supplies had to be carried overland. The Russian galley fleet arrived to the area on 29 June but stayed idle until 26–27 July when, under the leadership of Peter, Russian galleys managed to run the blockade making use of calm weather, which immobilized the Swedish battlefleet while losing only one galley of roughly 100. A small, hastily assembled Swedish coastal squadron met the Russian galley fleet west of Hangö cape in the Battle of Gangut and was overpowered by the Russians who had nearly ten-fold superiority. Russian breach of the blockade at Hangö forced the Swedish fleet to withdraw to prevent the Russian fleet from reaching Sweden itself. The Russian army occupied Finland mostly in 1713–1714, capturing Åland from where the population had already fled to Sweden on 13 August 1714. Since the Russian galley fleet was not able to raid the Swedish coast, with the exception of Umeå, which was plundered on 18 September, the fleet instead supported the advance of the Russian army, which led to hastily withdrawal by the Swedish army from Raahe (Brahestad) to Tornio (Torneå). The brutal occupation period of Finland in 1714–1721 is known as the Great Wrath.