Great Northern War: After losing the Battle of Helsinki to the Russians, the Swedish and Finnish troops burn the entire city, so that it would not remain intact in the hands of the Russians.

In the Great Northern War (1700–1721) a coalition led by Russia successfully contested the supremacy of Sweden in Northern, Central and Eastern Europe. The initial leaders of the anti-Swedish alliance were Peter I of Russia, Frederick IV of Denmark–Norway and Augustus II the Strong of…