“２島引き渡し 平和条約交渉急ぐ” 旧ソビエト機密文書 | NHKニュース
北方領土問題 - Wikipedia
国後島 - Wikipedia
択捉島 - Wikipedia
北方領土の人口 | 独立行政法人 北方領土問題対策協会

Why has Japan demanded the return of the Northern Territories?

Is it a wise way to ask for the return of two islands first?

How much do you know about Northern Territories?

What do you think is the best way to solve this problem?