 Complete the following phrase:  The war ended in 1721 when an exhausted Sweden sued for peace with Russia. Peter acquired four provinces situated south and east of the Gulf of Finland, thus securing his coveted access to the sea. There, in 1703, he had already founded the city that was to become Russias new capital, Saint Petersburg, as a window opened upon Europe to replace Moscow, long Russias cultural center. Russian intervention in the Commonwealth marked, with the 