Russia says it invaded Ukraine to halt Kyiv's ambitions to join NATO, the U.S.-led defensive alliance, which it saw as a major security threat. It also accuses Kyiv of persecuting ethnic Russians and their culture in Ukraine.

“The symbolism of Alaska would be a reminder of how it was possible for the United States and Russia for most of the 19th century to transcend their ideological and political differences and their expansionisms, to have warm, friendly cooperative relations,” says David S. Foglesong, a history professor at Rutgers University - New Brunswick.

When U.S. President Donald Trump and Russian President Vladimir Putin meet in Alaska on Friday, it will be the latest chapter in the 49th state’s long history with Russia — and with international tensions.