Mayor of Sloviansk Vadym Lyakh speaks during an interview with AFP in the eastern Ukrainian city of Sloviansk on June 20, 2022, amid the Russian invasion of Ukraine. - "The city is ready to defend itself," insists Vadym Lyakh, mayor of Sloviansk in eastern Ukraine which could soon become a fighting hotspot as Moscow's troops advance from the north. Outside his office in this small leafy city in the Donetsk region, people were on Monday filling up bottles from a large water barrel. (Photo by Anatolii Stepanov / AFP)

Mayor of Sloviansk Vadym Lyakh gestures during an interview with AFP in the eastern Ukrainian city of Sloviansk on June 20, 2022, amid the Russian invasion of Ukraine. - "The city is ready to defend itself," insists Vadym Lyakh, mayor of Sloviansk in eastern Ukraine which could soon become a fighting hotspot as Moscow's troops advance from the north. Outside his office in this small leafy city in the Donetsk region, people were on Monday filling up bottles from a large water barrel. (Photo by Anatolii Stepanov / AFP)