Russian President Vladimir Putin heavily criticized the United States in his speech at the St. Petersburg International Economic Forum on Friday. “Nothing lasts forever,” he said in reference to America being the world’s lone superpower. The man who ordered Russia’s invasion of Ukraine in February issued perhaps one of his most controversial statements in comparing himself to Peter the Great. “Peter the Great waged the Great Northern War for 21 years,” Putin said. “On the face of it, he was at war with Sweden taking something away from it… He was not taking away anything, he was returning. Thi…