Ukraine would not allow its territory to be turned into a buffer zone, President Volodymyr Zelensky said on the country’s Independence Day in clear reference to the Russian invasion. Ukrainian’s would repay the aggressor with interest, he said, warning that those seeking a Ukrainian buffer zone should take care that their own country did not become a “buffer federation.” Ukrainian forces have seized a large chunk of the Russian federation in the Kursk region. According to the Ukrainian authorities, Zelensky’s address was recorded in the region around Sumy in north-eastern Ukraine, from where t…