Europe needs Russian Gas - Qatar won't help, page-38

The Alaska Purchase (Russian: Продажа Аляски, romanized: Prodazha Alyaski, lit. 'Sale of Alaska') was the United States' acquisition of Alaska from the Russian Empire. Alaska was formally transferred to the United States on October 18, 1867, through a treaty ratified by the United States Senate.

The Soviet Union,[n] officially the Union of Soviet Socialist Republics[o] (USSR), was a transcontinental country that spanned much of Eurasia from 1922 to 1991.



https://en.m.wikipedia.org/wiki/List_of_countries_by_total_wealth

Debt is relative to a country's assets/wealth.