Decades: 1970s 1980s 1990s 2000s 2010s - 2020s - 2030s 2040s 2050s 2060s 2070s
Years: 2015 2016 2017 2018 2019 - 2020 - 2021 2022 2023 2024 2025
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... Kurile Islands remains disputed, no final peace treaty having been signed. Its orography and geological structure are imperfectly known. Two parallel ranges of ...